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   25 November 2007

   26 November 2007

   27 November 2007

   27 November 2007

Co-located events:
> Click here for the latest conference information, including program updates and important conference deadlines.


Tuesday, 27 November 2007 • 10:00am – 11:45am
High Reliability/Availability in Telecommunication Systems

Session Chairs:
Xin Meng, Motorola
Yan Liu, Motorola
Yuhang Zhao, Motorola

Reliability and availability has become an emerging design engineering discipline. Based on mathematical models and scientific methods, reliability and availability studies aim to assure a product will perform its intended function for the required duration within a given environment. They focus on how to design for, measure, predict, and assure reliability, and maintain it through the life of the system

Reliability studies include the design disciplines by contributing to the selection of the system architecture, materials, processes, and components; followed by verifying the selections made by thorough analysis and test. The highly competitive nature of the telecommunications industry aggravates the challenges by demanding an extremely high level of reliability and availability in the presence of a large variety of services and an increasing number of intricate functionalities. The major aim of this forum is to stimulate interactions between participants by exchanging new ideas and practical experience to address these challenges.


1) Title: Using Software Failure Data for Availability Evaluation
: Dr. Veena B. Mendiratta, Bell Labs, Alcatel-Lucent
2) Title: Modeling SIP Application Server Reliability
: Prof. Kishor Trivedi, ECE Department, Duke University
3) Title: Realizing Software Quality Benefits of Model-Driven Software Development
Presenter: Dr. Yuchen Zhang, Motorola
4) Title: Secured Mobile IPv6 Home Agent Reliability
: Hui DENG, China Mobile
5) Title: Balancing Time and Cost in Measuring Performance in a Multi-Service Network
: Todd Sankey, Dyaptive Systems Inc

Poster Session (Wednesday, 28 November 28 2007 • 2:00 pm – 3:45 pm)

1) Title: Achieving Highly Reliable Wireless Communication System
Design Using A Model-based RTL Design
Author: Wahyul Amien Syafei
2) Title: Service Availability for Real-Time Mission Critical
Computer Communication Network
Author: Rajiv Kumar, Krishna Gopal


Tuesday, 27 November 2007 • 10:00am – 11:45am
Dynamic Data Driven Applications Systems - New Drivers for Networking and Communications
Organized in conjunction with the National Science Foundation (NSF)

Session Chair:
Dr. Frederica Darema

The Dynamic Data Driven Applications Systems (DDDAS) concept is driving novel capabilities and directions in applications, measurements, and cyber-infrastructure, with ensuing technology requirements in underlying grid infrastructure of computer systems, data systems, networks and global communications. DDDAS entails the ability to incorporate dynamically additional data into an executing application (these data can be archival or collected on-line), and in reverse the ability of the applications will be able to dynamically steer the measurement process. That is, the dynamic environments of concern here encompass dynamic integration of real-time data acquisition with compute and data intensive-systems. Supporting such environments requires dynamic discovery, invocation, provisioning and management of resources, at all layers, including at the networking and communications layers. Such environments also further extend and stress the kinds of requirements and services needed for resource availability, prioritization, reliability, fault tolerance and security. The discussion on the technology capabilities needed, will be motivated by specific application areas and application examples, such as environmental hazardous situations, medical and health systems, critical infrastructure systems, and emergency response systems.

Prof. Alok Chaturvedi, Purdue University
Prof. Nikos Chrisochoides, College of William and Mary
Dr. Frederica Darema, NSF
Prof. Richard Fujimoto, Georgia Tech
Prof. David Hachen, University of Notre Dame
Prof. Jim Kurose, University of Massachussetts at Amherst
Prof. Amitava Majumdar, UCSD
Prof. Sanjay Shakkottai, University of Texas at Austin

Tuesday, 27 November 2007 • 2:00pm – 3:45pm
Grids, Networks and Virtualization
Organized in conjunction with the National Science Foundation (NSF)

Session Chair:
Craig Lee, The Aerospace Corp

Virtualization has been used to allow fully featured operating systems to coexist on the same processor and physical memory simultaneously. This enables both dynamic process isolation and migration. Virtualization also means that the physical I/O resources of a system are virtualized. This includes network endpoints, TCP connections, IPsec security associations, etc. This panel will examine the concrete technical requirements and strategic plans for how virtualization can be exploited in networks and grids, and also how this dovetails with server virtualization as in the data center.

John Wittgreffe, ICT Research Chief, BT Group Chief Technology  Office
Inder Monga, Director, CTO Labs, Nortel
Gigi Karmous-Edwards, Principal Scientist, MCNC
Mohamed Bakhouya, Research scientist, George Washington University

Tuesday, 27 November 2007 • 10:00am – 11:45am, 2:00pm – 3:45pm & 4:15pm – 6:00pm
Modeling and Simulation Tools for Network Designers and Developers

Session Chairs:
Jack L. Burbank, (JHU/APL)
William T.Kasch, (JHU/APL)
Jon R. Ward, (JHU/APL)

A full-day technical session aims to provide an overview of modeling and simulation (M&S) tools and techniques available to assist network designers and developers.  

M&S is a critical element in the design, development, and test and evaluation (T&E) of any network product or solution. In many cases, M&S provides the only method to gain insight into the performance of the eventual product or solution in a large-scale environment, and allows for more informed design trade studies. The goal of this technical session is to provide attendees an overview of many of the M&S tools and techniques that are available to assist them in their projects.  


1) Title: Modeling and Simulation of Waveforms Introduction:
Presenter: Jon Ward (JHU/APL)
2) Title: QualNet
Presenter: Jigar Shah, Scalable Network Technologies
3) Title: "OPNET Network R&D, Design, and Analysis"
Presenter: Pradeep K. Singh, Senior Vice President, Model Research and
Development, OPNET Technologies, Inc.
4) Title: Implementing Modern Digital Communications Standards
Presenter: Heath Noxon, National Instruments
In this session, we will explore the translation of a modern digital
communications standard to LabVIEW FPGA using a specific test case
fromDVB-T, a digital television standard used in Europe. We will discuss
the reasons for migrating the code, the process of translating the code,
and a performance analysis of the LabVIEW FPGA implementation.
5) Title: Waveform Creation Demonstration
Presenter: Randy Becker, Agilent Technologies
6) Title: Modeling and Simulation of Waveforms
Presenter: John Irza, Mathworks
7) Title: Network Simulation Introduction
Presenter: Jack Burbank (JHU/APL)
8) Title: A High-Fidelity and Time-Driven Simulator for Large Wireless Mesh Networks
Presenter: Don Cox, Vahideh Manshadi, and Hyunok Lee, Stanford University
9) Title: Distributed Systems
Presenter: Bill Kasch (JHU/APL)

Tuesday, 27 November 2007 • 2:00pm – 3:45pm & 4:15pm – 6:00pm

Next Generation Mobile Wireless Broadband Technologies

Session Co-Chairs:
Andres Kwasinski, Texas Instruments
Rana Sircar, WiPro
Tom Tofigh, AT&T

This session will be focused on the technology and deployment issues associated with the WiMAX IEEE 802.16 and Long Term Evolution (LTE) standards as the mobile wireless broadband radio technologies for fourth generation (4G) networks. It is expected that both these technologies will be soon a popular radio access technology to deliver 4G wireless broadband services. WiMax (Worldwide Interoperability for Microwave Access) is the name of the certification label that covers the IEEE 802.16 standard. There are two major releases of IEEE 802.16. Released in October of 2004, the IEEE 802.16 standard was designed to provide fixed broadband wireless access. In December of 2005, the standard was improved to add mobile broadband features in what is known as the Mobile WiMAX standard IEEE 802.16e.

Long Term Evolution (LTE), also known as "Evolved UTRA and UTRAN", is the standard currently being developed to enhance the coverage, capacity, and data rate of current 3GPP cellular systems (currently featuring radio access through UMTS, HSDPA, etc). From the technological viewpoint, LTE has many coincidences with mobile WiMAX, such as modulation based on OFDM, use of adaptable modulation and coding, emphasis on advance antenna systems (MIMO, beamforming, etc), architecture oriented towards an all-IP network, etc. From the deployment perspective, LTE is still an evolving standard with actual field deployment expected to be after WiMAX.


1) Title: Challenges and best practices towards 4G
Presenter: Tom Tofigh, WiMAX Forum AATG Chair
Abstract: Cross layer optimization and design principals to enhance 4G Application quality of experience (QOE) are presented. Further, Intelligent application dynamics and requirements are analyzed in terms 4G Mobile broadband communication services as a function of user behavior, application adaptation, and network ability to best optimize the network resources. This talk will address mitigation and strategies that best address the variations in the wireless channels. Traffic patterns, user locations, and network conditions are considered with various constrains and mitigations as part of the applications requirements for 4G.
2) Title: Designing and Implementing the Baseband Radio Modules in OFDM-based 4G Systems
Presenter: Andres Kwasinski, Texas Instruments
Abstract: In this talk we will describe the design and implementation of the baseband radio modules in 4G wireless systems based on the OFDM technology. The approach that we will take is focused on describing the different design tools available at design time. On the hardware side, we will provide an overview of different state-of-art digital signal processors optimized for communication infrastructure. In addition, we will describe how different specialized architectural and functional features in the DSPs can be used in an efficient design. On the software side, we will explain a typical architecture and how optimized code libraries can be used to achieve highly efficient results while reducing development cycle time. Also, we will emphasize how the underlying use of common technologies in many upcoming 4G standards, naturally lend themselves for both hardware and software reuse that reduces design and development cost and time.
3) Title: Introduction to Mobile WiMAX Networks and QoS requirements in WiMAX
Presenter: Rana Sircar, Wipro Technologies
4) Title: WiMAX NS-2 Simulator Design: Challenges in PHY/MAC Modeling to Support Scalable System Simulation
Presenter: TBD
5) Title: Long-Term Evolution of the 3G Wireless Standard: Key Technologies and System Performance
Presenter: Tarik Muharemovic, Texas Instruments
Abstract: This presentation will focus on the uplink PHY for the 3GPP EUTRA LTE, and give an overview of key design choices made for the 3GPP LTE. The presentation will first show how maximum cell coverage is achieved with a low PAPR transmission, using single-carrier OFDMA (SC-OFDMA) via DFT-spread OFDMA. Design choices and motivations for SC-OFDMA, with "distributed" and "localized" options, and rationale for selecting "localized" SC-OFDMA for the uplink PHY, are presented. The presentation will further include system-level evaluation methodology, system-level evaluations (i.e. system simulations), including link-to-system level mapping, and CDFs of achievable spectral efficiencies in the EUTRA uplink. System operator choices for cell-edge vs. cell average throughputs, and the shape of the cell-edge vs. average throughput region is discussed. The presentation will conclude with some forward-looking problems and issues incurred by the choice of SC-OFDMA, such as SC-OFDMA scheduler limitations.
6) Title: The Business Case for Advanced WiMAX Receivers: From Initial Deployment to Mature Wireless Systems
Presenter: Mark Reed, National ICT Australia
Abstract: Optimization of a WiMAX wireless system can occur at various places providing different benefits to the overall system performance. Optimization is critical to maximize the efficiency of the wireless network. During initial deployment, coverage is optimized to minimize infrastructure costs and achieve profitability sooner, while later as the network matures capacity needs to be optimized. In this presentation we investigate the gains possible from advanced receivers and illustrate the system benefits in terms of cell range improvement and average data throughput for a user. Surprisingly for a very small improvement in receiver sensitivity, significant cell area and throughput improvement can be achieved. As Multiple-Input Multiple-Output (MIMO) is deployed and modem chip developers can differentiate themselves more through their products then even more significant gains can be achieved.

Tuesday, 27 November 2007 4:15pm - 6:00pm
Cyber-enabled Discovery and Innovaion (CDI)
Organized in conjunction with the National Science Foundation (NSF)

Session Chair:
Dr. Sirin Tekinay

Cyber-enabled Discovery and Innovation (CDI) is a new cross-cutting program that was recently announced by the NSF. Information about the new program is available at the following URL: http://www.nsf.gov/crssprgm/cdi/. The goal of this session is to inform the communications and networking community about the scope of the new program and the opportunities for this community. The session will consist of an overview presentation followed by questions, answers and discussion by the panel and attendees.

Dr. Sirin Tekinay, NSF
Dr. Maria Burka, NSF
Dr. Eduardo Misawa, NSF
Dr. Scott Midkiff, NSF
Dr. Stephen Nash, NSF
Dr. Thomas Russel, NSF

Wednesday, 28 November 2007 • 10:00am – 11:45am
Next Generation Networks:   A new breed of Network and IT service infrastructure called "Service Oriented Networks" or "Web 21C"

Session Chair:
John Wittgreffe, BT (British Telecom)

As Information and Communications Service Providers progress with virtualisation projects, a new breed of infrastructure is emerging called "Service Oriented Networks" (SON). Within SON, Network resources, IT resources, and other telco capabilities are exposed for direct access by application designers and developers during D&D... and by users at runtime. This enables for example, the Networks and IT to be adapted in real time according to an application's immediate needs, to make sure the quality of experience is appropriate. Alternatively, an application can ask the network to give the users location (subject to local law) adapting the experience accordingly. Using this approach, BT is already starting to expose a broad range of network capabilities directly to designers and developers, not just within BT, but externally to people such as yourselves- these including messaging, location based services, and authentication, under our "Web 21C" initiative. Capabilities normally hidden within the telco, will be available for your own developments using special versions of (standard) development tools, which include classes and functions that directly lever telco capabilities across the Web. This D&D session will introduce this exciting new area of telecommunications, aiming to be a lively session, bringing D&D issues to life through examples and demonstrations of research areas and also things available now, including:


1) Title: An brief overview of "Service Oriented Networks"
2) Title: Research Example: Use in orchestrating network and IT resources to deliver application level Quality (including demonstration)
3) Title: A view of an example service bus- the orchestration tools at the centre of an SON
4) Title: Research Example: Use in enabling new applications- virtual call centre demonstration
5) Title: Real example- Live design and build of a new mobile telco application using web exposed capabilities- try this yourself when you get back home! The session will provide a follow on from Matt Bross's plenary session. In addition to the chair John Wittgreffe (BT's ICT Research Chief), there will be technical presentations/demonstrations from Telco designers/developers Kashaf Khan and Paul Deans. Also, we are pleased to be joined by the CTO of Progress, Hub Vandervoort, one of our Service Bus partners, who will take us through some the fundamentals of Service Bus technology.

Wednesday, 28 November 2007 • 10:00am – 11:45am
Mobility Management in Wireless Networks

Session Chairs:
Vivek Gupta, Intel
Rana Sircar, WiPro
Nada Golmie, NISTftp
Abstract: Ubiquitous Service delivery across heterogeneous networks is a major challenge for the Service Providers. Media independent handover protocols and seamless mobility techniques between diverse networks solve this and quite a few other network challenges. This also enables new applications and services. There are multiple approaches for seamless mobility. This session will cover emerging seamless mobility approaches and technologies. Some of the experts involved in the creation of these technologies will explain the standards. This apart, there will be discuss ions on the impacts, application and services as well.


1) Title: Seamless mobility requirements in IMT_Advanced / 4G Networks and the associated challenges
Vivek Gupta, Intel
2)Title: Advances in IETF and L3 Mobility management
3) Title:  Cross-layer mobility management to achieve handovers
Nada Golmie, NIST.
4) Title : Network & Device Management for Seamless Mobility
Rana Pratap Sircar, Wipro Technologies
Wednesday, 28 November 2007 • 1:00pm– 1:55pm
India Calling - Telecommunications Opportunities in India
Session Chair:
N.K. Goyla

India has largest democracy with a population of 1.12 Billion, current GDP USD $1 Trillion growing at 9% can migrate to USD $5 Trillion as per World Bank. It has market capitalization of USD $1.5 Trillion being Number 8 in world. Foreign exchange reserves at USD $261 Billion are 5th largest in world. The consumer market is going to be 5th largest in world by 2015.

The Indian telecom sector value is USD $48 Billion at present and is expected to grow to USD $320 Billion by 2015. The Indian telecom sector with 250 Million subscribers is 3rd largest in world after China, US and 2nd largest in Asia. It is poised to grow to 500 Million subscribers by 2010 and 650 Million by 2012. It has the world's highest monthly addition of 7-8 Million subscribers with present teledensity of about 21%. Broadband presently has 2.65 Million subscribers, expected to grow to 140 Million by 2012. India has mix of wireless technology with both GSM and CDMA. India also will enter WIMAX in big way. India now offers good investment opportunities whether as a telecom operator, for electronic manufacturing or the IT service sector. India offers its help to penetrate the Indian market by way of joint ventures, Trade facilitations, marketing tie ups, technological tie ups etc. Contact nkgoyals@yahoo.co.in

Wednesday, 28 November 2007 • 2:00pm - 3:45pm & 4:15pm – 6:00pm
IMS (IP Multimedia Subsystem)

Session Co-Chairs:
Mike Loushine, Telcordia Techologies
Vijay Varma, Telcordia Techologies

The IP Multimedia Subsystem (IMS) is considered as the platform of choice for providing a unified session control on top of multiple access network technologies for realizing flexible multimedia applications. IMS, with its access-agnostic session layer, is also driving the concept of Fixed-Mobile Convergence by merging the fixed and mobile telecommunication networks with the Internet and the adoption of IP technologies within the telecom domain. IMS represents conceptually a combination of the traditional fixed and mobile networks from the telecom domain with emerging VoIP and Internet applications in order to implement a seamless multimedia service environment.

This session will address the state of the art of IMS including market trends, migration strategies, core network issues and challenges, applications driving IMS technology forward, fixed mobile convergence, different test bed implementations, interoperability issues, and deployment status.


1) Title: An IMS Reality Check
Presenter: Brian Patridge, Yankee Group (Invited talk)
Abstract: The IP multimedia subsystem has received tremendous amount hype in the marketplace, propagated by vendors and tier one operators alike.  In some circles it has been positioned as the "magic bullet" to cure all that ails operators who desire new revenue streams and lower network opex.   Can IMS realistically deliver on its promises?  Or will it fall short of expectations and yield to alternative service delivery architectures? This session will answer these questions and more based on real world feedback Yankee Group has collected from the field and paint a realistic view of the state of IMS adoption, current industry challenges, and opportunities.

2)Title: IMS Application Architecture: Interoperability and Composition
Presenter: Hal Purdy, AT&T (Invited talk)
Abstract: The IP Multimedia Subsystem (IMS) architecture aims to support advanced telecommunication features deployed on Application Servers (AS). Defined in the IMS specifications, the IP multimedia Service Control (ISC) interface dictates how SIP Application Servers interact with the S-CSCF. Service providers like AT&T should thus expect that SIP Application Servers provided by one vendor should interoperate with an S-CSCF provided by another vendor. Furthermore, IMS specifically recognizes and supports the need to combine several Application Servers together on subscriber calls thereby enabling the functional composition of several advanced features.

In practice, getting different vendors’ IMS core components, Application Servers, and Media Servers to correctly interoperate is a challenge that often requires some ingenuity to overcome. This challenge becomes larger when an operator wishes to support application composition particularly in the presence of applications that operate as SIP Back-to-Back User Agents (B2BUA). The intrepid service provider that wishes to combine several Application Servers together on subscriber calls must not only overcome basic interoperability issues but IMS specifications that are sometimes imprecise as regards application composition.

This technical talk will explore interoperability challenges likely faced by a service provider looking to deploy or compose advanced telecommunication features in a multi-vendor IMS deployment. Also discussed will be how other standard technologies, such as SIP Servlet containers, have addressed these same composition issues and how these technologies should be deployed along with or instead of similar IMS components like the Service Capability Interaction Manager (SCIM).

3) Title: The IMS Transition
Presenter: Michael Xu, Tekelec, USA
Contributors:  Michael Xu, Dan Bantukul, Tekelec, USA
Abstract: Tekelec’s perspective is the transition to IMS is an evolution that has the potential to span a decade or longer. During the transition, SS7 and SIP-based IMS networks will need to coexist. Carriers will need to offer new multimedia applications in addition to existing IN services. Carriers will scrutinize the economics and risks or transitioning to an all SIP-based architecture. There will be numerous vendor trials over the next several years as the technology matures and standards are set, and Tekelec believes operators will take a “best of breed” approach. Given the variety of networks in various states of migration, transition solutions which allow carriers to bridge IN, IP and “IMS-ready” SIP-based applications will be a critical component to the evolution. The signaling control layer is a critical component for carriers, and solutions such as IP/Sigtran signaling and SIP to SS7 gateways will allow carriers to maximize investments, preserve network service delivery reliability and maximize opportunities.

4) Title: Media Function in IMS
Presenter:Jean-Charles Gregoire, International Institute for Telecommunications, Montreal, Canada
Contributors: Jean-Charles Gregoire, International Institute for Telecommunications, Montreal, Canada,
Admela Jukan, Technical University, Carolo-Wilhelmina of Braunschweig, Germany.
Abstract: Although multimedia is fundamental to IMS and its operations, much of the focus of IMS' original work has been on signaling issues and not media processing. The Media Resource Function (MRF), part of the IMS Core architecture, is a collection of functions of varied nature, yet required to support various telephony services in signaling and media planes. Over time, however, this function has generated more interest as manufacturers have positioned products to implement it and services have emerged which required support of more sophisticated media functions, beyond what has been specified so far. Nevertheless, studies on the nature of the various media functions required for operations of IMS services, or on the way they can be integrated in IMS operations, have been few and far between. In this presentation, we review and analyze different perspectives on media functions, including a review of the relevant 3GPP standards. We introduce an original view on the organization of the IMS media function to attempt to facilitate its integration into services.

5) Title: IMS-based Seamless Voice Continuity: Architecture,   Procedures and Performance Evaluation
Presenter: Apostolis K. Salkintzis, Motorola
Contributors: Apostolis K. Salkintzis, Motorola , Nikos Passas and Spyros Xergias, University of Athens, Greece

Abstract: The purpose of this presentation will be to discuss an IMS-based architecture and the required procedures that can enable voice call transfer across UMTS and IEEE 802.16e, and also to study how many voice calls can be handed over from UMTS to 802.16e. Our study is based on a simulation model that lets us quantify the maximum number of UMTS voice calls that can be admitted to an 802.16e BS, subject to maintaining the same level of QoS in both networks and confined to a certain available bandwidth in 802.16e. Our results indicate that an IEEE 802.16e BS can support a large number of UMTS voice calls, which depends primarily on the QoS requirements and the applied 802.16e bandwidth sharing policy (i.e. how the available bandwidth is shared between voice and data users).

6)  Title: Enriching IMS based IPTV with Virtual Identity Management: Experiences
Presenter: Sebastian Felis, NEC Laboratories Europe, Network Division, Heidelberg, Germany
Contributors: Mischa Schmidt,  Dr. Daniele Abbadessa, NEC Laboratories Europe, Network Division, Heidelberg, Germany

Abstract: Currently we observe trends of fixed and mobile operators to move towards converged networks. IMS is the enabler of this convergence providing the common control layer for so called Next Generation Networks as, for example, defined in ETSI TISPAN. We focus on a key service for future Triple Play offerings: IPTV. In particular, we concentrate on IMS based IPTV which is one of the two architectural approaches chosen by ETSI TISPAN in its second Release of NGN specifications.

After a brief introduction into these specifications, we concentrate on practical experience gained in testbed implementations realizing IMS based IPTV, supporting not only Live TV retransmission via IP and Content on Demand, but also more sophisticated IPTV services e.g. by blending it with Presence and other communication services.

On top of that, we introduce the concept of Virtual Identities and Identity Management, showing the benefits in the IPTV service environment both from a user as well as from a service provider and operator perspective – e.g. by supporting privacy for value added services on top of the IPTV service eco-system itself. New business concepts emerge from this combination of innovative technologies which was also contributed to the ITU-T Focus Group on Identity Management. We validated these concepts in our Virtual Identity enabled IMS based IPTV testbed implementation and share our experiences gained.

7) Title: Lessons from Testbed – A Catalyst for IMS Deployment
Presenter: Ashutosh Dutta, Telcordia Applied Research
Contributors: A. Dutta, F. Joe Lin, S. Das, Telcordia Applied Research, USA
T. Chiba, H. Yokota, KDDI R&D Laboratories, Japan
H. Schulzrinne, Columbia University, USA

Abstract: In order to realize the level of sophistication involved in IMS deployment and develop some guidelines that could be useful to the wireless carriers, we have implemented an experimental  IMS/MMD testbed and have prototyped many of the functional components, such as signaling, configuration, registration, security, and mobility. In addition, we have incorporated certain key features of A-IMS, such as support for non-SIP-based services (e.g., IPTV), interaction between SIP and Non-SIP related services and roaming functionality. Most of the functional components have been implemented using standards-based IETF protocols such as SIP, MIPv6, ProxyMIPv6, RTSP, and Diameter. In this talk, we share our experiences in building an experimental enhanced MMD testbed that runs over both IPv4 and IPv6 and incorporates certain key features of A-IMS as well.  We highlight many of the deployment related issues, such as trombone routing due to Mobile IP, context transfer due to P-CSCF relocation, and propose various security and mobility related optimization techniques to improve the performance during handoff. We also share some of the experiences and performance of  IMS over satellite-based IPv6 core networks.

8) Title: The Open IMS Core - an Open Source Reference Implementation for the Telecommunications Industry
Presenters: Peter Weik, Fraunhofer FOKUS; Dave Waiting, University of Cape Town
Contributors: Peter Weik, Dragos Vingarzan, Fraunhofer FOKUS; Dave Waiting, Richard Good, University of Cape Town

Abstract: We will outline, what motivated Fraunhofer FOKUS to establish an Open Source project for IMS core networks and we will introduce the project and its application in the academia, industry and with operators for establishing IMS testbeds or applications like IPTV over IMS. On the client side, we will show the UCT IMS Client project status and provide some measurements for access network technologies.

9) Deploying an IMS testbed: The VITAL Experience
Presenter: Spyros Denazis, University of Patras, Greece.

Abstract: The VITAL project (http://www.ist-vital.eu/), funded by EU Framework Programme 6, aims at consolidating the technological framework that will enable the smooth transition of multimedia communications (including voice) from a circuit to a packet switched domain of the communications. With respect to this goal, the project is currently setting up an experimental IMS distributed platform for elaborating solutions to the aforementioned problems and test, validate and assess the resultant integrated IMS functionality in the context of advanced traffic experiments and theoretical simulations. The proposed presentation aims at providing an overview and report on the experiences of deploying a true IMS platform and running a wide range of scenarios ranging from VoIP to video distribution in the context of the VITAL project.


Wednesday, 28 November 2007 • 2:00pm – 3:45pm & 4:15pm – 6:00pm
Current and Future Trends in Software Designed Radio/Cognitive Radio (SDR/CR) Design & Development

Session Chairs:
Mark Buckner, Oak Ridge National Laboratory
Paul Ewing, Oak Ridge National Laboratory

Software defined radio (SDR) is currently being used to implement simple radio technologies by controlling programmable hardware with software to change frequency bands and modulation techniques, either manually or over-the-air. It is also the enabler of the cognitive radio (CR), a new paradigm based on actively monitoring the radio environment (e.g., available spectrum, user behavior, and network state) and automatically reconfiguring the radio to best suit the user's needs. In time, because of its ability to optimize utilization and performance, SDR/CR is expected to dominate radio communications.

This session will focus on the latest approaches related to the design and development of SDRs/CRs and in particular, the tools, design philosophies, problems/challenges, and potential technology gaps. Presentations by some of the leading SDR/CR designers and developers, along with a lengthy panel discussion, are planned. The SDR/CR designers and developers are being encouraged to present a general overview of the approach used in their organization, the challenges they face, the gaps/needs perceived in current tools/approaches, and their vision of the future. Ample time will also be allowed for questions and discussions.

1) Title: GNU Radio: Current Capabilities & Future Directions
Eric A. Blossom, Founder, GNU Radio Project, Blossom Research, LLC
Abstract: An overview of the GNU Radio system will be provided, describing its current capabilities and some of the applications that have been built using it. This will be followed with a discussion of the future directions for GNU Radio. Future directions include support for a wide range of TDMA and wide-band data networking waveforms.   In addition, a plan for the exploitation of high-performance heterogeneous platforms, such as the CELL Broadband Engine, will be outlined.

2) Title: Algorithm and Architecture Design on the Rice University Wireless Open-Access Research Platform (WARP)
Dr. Joseph R. Cavallaro, Associate Director, Center for Multimedia Communication, Rice University

3) Title: The Universal Software Radio Peripheral (USRP) and the USRP2
Matt Ettus, Developer, Universal Software Radio Peripheral, Ettus Research, LLC

4) Title: Challenges and Promises in Cognitive Radio
Dr. Bruce Fette, Chief Scientist, General Dynamics C4 Systems

5) Title: Building a Cognitive Radio
Dr. Gary J. Minden, Director, Communications and Networking Systems Laboratory Information and Telecommunication Technology Center, University of Kansas

6) Title: Efficient spectrum utilization in a collaborative communications environment
Dr. Borivoje Nikolic, Professor, Berkeley Wireless Research Center, University of California at Berkeley

7) Title: Challenges of RF Front-End Design for Commercial and Military CR/SDR Systems
Dr. Barry S. Perlman, Director, DARPA Liaison Program Office U.S. Army Communications-Electronics R&D Center (CERDEC)

8) Title: Adaptive Transmission Protocols for Cognitive Radios in Dynamic Spectrum Access Networks
Dr. Michael B. Pursley, Holcombe Professor, Department of Electrical and Computer Engineering, Clemson University

9) Title: The Next Big Challenge: Regulation, Certification, and Testing of Cognitive Radios
Presenter: Dr. Jeffrey H. Reed, Director, Wireless @ Virginia Tech, Virginia Polytechnic Institute and State University

Thursday, 29 November 2007 • 2:00pm – 3:45pm & 4:15pm – 5:00pm
Wireless Access for Vehicular Environments

Session Chair:
Tim Weil, CISSP/CISA, Associate, Booz, Allen, Hamilton

The Department of Transportation Vehicular Infrastructure Integration (DOT VII) program has paved the way for the Intelligent Transportation Systems of tomorrow.  VII envisions a future in which intelligent vehicles routinely communicate with each other and the transportation infrastructure in real time. 

The VII technical architecture is based on  IEEE 1609 Wireless Access for Vehicular Environments (WAVE) standards which define an architecture and a complementary set of services that enable secure vehicle-to-vehicle and vehicle-to-infrastructure wireless communication. The IEEE WAVE family of standards(1609) provide the foundation for a broad range of applications in the transportation environment, including vehicle safety, public safety, communication fleet management, automated tolling, enhanced navigation, traffic management and other operations.

The suite of WAVE protocols provides application services and Dedicated Short Range Communication (DSRC) communication channels, to provide secure messaging and application services between wireless roadside access points and vehicle radio transceiver units. This presentation will focus on the VII Identity and Access Management challenges and opportunities provided by the IEEE 1609.2, WAVE Security Services for Applications and Management Messages. An examination of the working model will also demonstrate the use of 1609.3 networking to manage message and applications using DSRC/WAVE communication services


1)Title: VII Enterprise Architecture - The Department of Transportation Vehicular Infrastructure Integration (DOT VII) program
Presenter: James Gyarmathy, Booz, Allen, Hamilton
2)Title: Technical Overview - The Wireless Access for Vehicular Environment (IEEE 1609) Protocol Stack
Presenter: Tim Weil, Booz, Allen, Hamilton
3)Title: Security and Privacy Within VII Privacy Preserving Vehicular Communications
Presenter: Dr. Tao Zhang, Telcordia Technologies
4)Title: Identity and Access Management using the WAVE 1609.2 Protocol
Presenter: Tim Weil, Booz, Allen, Hamilton
5)Title: Building Services for the VII Environment - Use of the WAVE Networking Standard for In-Vehicle Communication
Presenter: Jim Marousek, Booz Allen Hamilton

Thursday, 29 November 2007 • 2:00pm – 3:45pm & 4:15pm – 5:00pm
Quantum Key Distribution Systems, Networks, and Applications

Session Chair:
Robert J. Runser, Laboratory for Telecommunications Sciences

Securing network communications by using public key distribution and encryption technology are ubiquitous in today's Internet transactions and web browsers.   However, new computational paradigms such as quantum computing are challenging the underlying security assumptions of these techniques. A new approach to key distribution based on single photon quantum communications has emerged as a means for users to achieve a new level of unconditionally secure key distribution on free space and fiber optic network links. Commercial QKD systems have recently emerged on the market and several telecommunications research organizations and consortia have active groups developing next generation QKD systems and networks.  


1) Title:
Twenty-two years of quantum key distribution
Presenter: Richard Hughes, Los Alamos National Laboratory
Abstract: This talk will review the key advances underlying developments in experimental optical fiber and free-space QKD over the past 16 years and discuss the present status of the field. I will describe some recent results that have achieved ultra-long transmission distances and unconditional security over 107km through the use of the decoy-state protocol and ultra-high efficiency, low-noise photo-detectors. I will also describe progr! ess in making QKD compatible with all-optical fiber networks, including the co-existence of QKD signals with conventional optical data on the same fiber. I will conclude my talk with a survey of the prospects for QKD transmission distances exceeding 200km.
2) Title: The SECOQC Quantum Key Distribution Network Prototype: Principles, Design and Implementation
Presenter: Momtchil Peev, Smart Systems Division, Austrian Research Centers
Authors: M. Peev, R. Alléaume, T. Länger, N. Lütkenhaus, O. Maurhart, L. Salvail
Abstract: We address the approach of the Integrated EC-project SECOQC to Quantum Key Distribution (QKD) in telecommunication networks. On the one hand we focus on the cryptographic principles of network-wide information-theoretically secure key agreement which utilizes point-to-point QKD as a resource, and on the design of corresponding relevant network protocols. On the other we report on the implementation status of a prototypical SECOQC Network in Vienna, Austria, and discuss the topology of this network, the different types of QKD devices employed as well as the integrated node modules, which allow a uniform network design and transparent interoperation with higher communication layers.
3) Title: Networking Considerations for Entanglement-based Quantum Key Distribution
Presenter: Nicholas A. Peters, Telcordia Technologies, Inc.
Authors: Nicholas A. Peters, Thomas E. Chapuran, Paul Toliver, Robert J. Runser, Matthew S. Goodman
Abstract: We discuss the domains of use for entangled-photon quantum key distribution (EQKD) in optical fiber networks. After a brief overview of the networking environment, we examine the tradeoffs between heralded and centralized-source architectures, and discuss the implications for both EQKD usage and entangled-source design.
4) Title: MagiQ's QPN Technology in Existing Network Infrastructure.
Mike LaGasse, Magiq Technologies Inc.
Author: Mike LaGasse
Abstract: This talk will summarize the latest developments in MagiQ's QPN Technology. The talk will concentrate on solutions to increase communication distance and QKD deployment in DWDM networks.
5) Title: Integrated Devices for Practical Fiber QKD Systems and their applications Presenter: Yoshihiro Nambu, NEC, Inc.
Yoshihiro Nambu, Ken'ichiro Yoshino, and Akihisa Tomita
We present integrated optical devices for practical fiber QKD systems based on single photon interferometer. The devices are based on asymmetric Mach-Zehnder interferometer and fabricated by a passive planar lightwave circuit (PLC). They are expected to simplify the QKD systems and increase their reliabilities, thereby enhances their practicality. We discuss stability and polarization characteristics of our PLC devices. We propose various practical QKD systems that can be constructed using our devices and show several experimental efforts demonstrating the proposed systems.
6) Title: Physical-Layer Encryption Aided by Optical Noise
Presenter: Gregory S. Kanter, NuCrypt, LLC
Abstract: Protecting communications from unauthorized observation is a critical value-added function. Most encryption systems rely exclusively on mathematical algorithms. Some methods of protection, such as frequency-hop spread spectrum, use advanced modulation formats to help protect secrecy. A new modulation method well suited to optical communications has recently been developed which promises extreme levels of security by combining traditional encryption algorithms with a novel modulation format in such a way that the inherent quantum optical noise of the signal gives additional protection. This method, called AlphaEta, is compatible with traditional optical infrastructure such as optical amplifiers, narrow-band filters, and long-distance fiber propagation.