Abstract:
A concise description of the content and goals of the tutorial (5 to 10 lines) The tutorial focuses on emerging “smart” or “interactive” environments, which one that is able to acquire and apply knowledge about an environment and its inhabitants in order to improve their experience in that environment. Recent and ongoing advances in mobile and pervasive computing, wireless and sensor networks, adaptive displays, machine learning, voice and image recognition algorithms, middleware and agent based technologies are core enablers of this vision. In particular, the tutorial will focus on some sample smart space scenarios, specifically a smart home, smart office cubicle and interactive retail environments. At its core, the tutorial should help demonstrate how applications and middleware are being re-architected to leverage on an underlying rich sensor and actuator network substrate to provide both automated adaptation to changing user preferences and intentions, and to more natural interaction with the networked information infrastructure.

Dr. Sajal K. Das received B.S. degree in 1983 from Calcutta University, M.S. degree in 1984 from Indian Institute of Science at Bangalore, and Ph.D. degree in 1988 from the University of Central Florida at Orlando, all in Computer Science. He is a Professor of Computer Science and Engineering and also the Founding Director of the Center for Research in Wireless Mobility and Networking (CReWMaN) at the University of Texas at Arlington (UTA). Dr. Das is a recipient of the UNT Student Association's Honor Professor Award in 1991 and 1997 for best teaching and scholarly research; UNT's Developing Scholars Award in 1996 for outstanding research; UTA's Outstanding Faculty Research Award in Computer Science in 2001 and 2003; UTA's College of Engineering Research Excellence Award in 2003; and the University Award for Distinguished Record of Research in 2005. He is the coauthor of the book Smart Environments: Technology, Protocols and Applications, published by John Wiley in 2005.

Dr. Das’ current research interests include design and development of smart environments, resource and mobility management in wireless networks, mobile and pervasive computing, wireless multimedia, ad hoc and sensor networks, mobile internet architectures and protocols, distributed and grid computing, performance modeling and simulation. He received Best Paper Awards in the 5th Annual ACM International Conference on Mobile Computing and Networking (MobiCom’99), 16th International Conference on Information Networking (ICOIN’01), 3rd ACM International Workshop on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM’00), and 11th ACM/IEEE International Workshop on Parallel and Distributed Simulation (PADS’97). Dr. Das serves as the Editor in Chief of the Pervasive and Mobile Computing (PMC) journal and also as an Associate Editor of IEEE Transactions on Mobile Computing, IEEE Transactions on Parallel and Distributed Systems, ACM/Springer Wireless Networks, Parallel Processing Letters, and Journal of Parallel, Distributed and Emerging Systems. He served as General Chair of IEEE WoWMoM’05, IEEE PerCom’04, IWDC’04, IEEE MASCOTS’02, ACM WoWMoM’00-02; General Vice Chair of IEEE PerCom’03, ACM MobiCom’00, IEEE HiPC’00-01; Program Chair of IWDC’02, WoWMoM’98-99; TPC Vice Chair of ICPADS’02; and as TPC member of numerous IEEE and ACM conferences. He is the Vice Chair of the IEEE Computer Society's TCPP and TCCC Executive Committees and on the Advisory Boards of several cutting-edge companies.


Dr. Archan Misra is a Research Staff Member with the Next Gen Web Infrastructure Department at the IBM TJ Watson Research Center, Hawthorne, NY. He has been working on infrastructural components and protocols for context-based computing and pervasive applications for the past 3 years. In particular, he works on IBM’s mobile computing product line and is currently exploring the use of SIP for retrieving an individual’s activity on different communication channels and thereby enhancing presence to reflect an individual’s availability for various tasks. As part of his earlier job as a researcher at Telcordia Technologies (Bellcore), Archan worked on mobility management architectures for IP-based cellular networks, including both network-layer (extensions to Mobile IP) and application-layer (extensions to SIP) handoff techniques. His other ongoing research efforts and interests include mobility protocols for next-generation (4G) wireless networks, protocols for high-performance wireless meshes and query middleware for wireless sensor networks. He has published extensively in the areas of wireless networking, congestion control and mobility management and was a co-author on papers that received the Best Paper awards in ACM WOWMOM 2002 and IEEE MILCOM 2001. He serves on the technical program committees of several conferences, such as IEEE INFOCOM and IEEE WOWMOM and is currently the Untethered Technologies chair of the IEEE Computer Society’s Technical Committee on Computer Communications (TCCC). Archan received his Ph.D. in Electrical and Computer Engineering from the University of Maryland at College Park in May, 2000, and his B.Tech in Electronics and Communication Engineering from IIT Kharagpur, India in July 1993. Professional details are available at http://www.research.ibm.com/people/a/archan.

Abstract:
The first half of the tutorial addresses the family of standards that fall under the WiFi forum. It starts by describing the DSSS and OFDM signaling schemes of 802.11b, g and a. It then describes the MAC layer for the same family in its original form which was intended for short range indoor WLAN. The tutorial then addresses recent MAC enhancements and provisioning for outdoor access including: mesh networking, rural communications, long distance point-to-point, fast hand-off and integration with the 2G/3G infrastructure. The second half addresses the group of standards that fall under the WiMax forum which are based on 802.16. We describe the physical layer for various 802.16 systems including 802.16e. Single Carrier, OFDM and OFDMA transmission strategies are discussed with TDD, FDD and MESH framing. The structure of the WiMax MAC layer is described including the data mapping and packet scheduling of OFDMA frames. The expanding range of applications for both 802.11 and 802.16 families is discussed by giving several deployment scenarios.


Prof. Roshdy H.M. Hafez obtained the Ph.D. in Electrical Engineering, from Carleton University, Ottawa, Canada. He joint the Department of Systems and Computer Engineering, Carleton University as an assistant professor, and he is now a full professor.

Dr. Hafez has many years experience in the areas of Wireless communications, RF and spectrum engineering. He has lectured extensively in wireless and related areas. His current research focuses on broadband wireless networking, 3G/4G, wireless over fiber and sensor networks.

He acts as a consultant to Nortel, Industry Canada, CRC, SigproWireless and other telecommunications companies. Between 1994 and 2000 Dr. Hafez was actively involved and lead projects in federal and provincial centers of excellence: TRIO, CITR and CITO. Dr. Hafez gave several tutorials in international conferences and taught many short courses to the industry.
 

Prof. Abbas Yongacoglu has more than 30 years of industrial and academic experience in digital communications. He worked at Marmara Research Institute, Philips Research Labs and Miller Communications Systems. In 1987 he joined the University of Ottawa where he is now a full professor. He has given many short courses to the Canadian Industry and Government on Wireless Communications.

Abstract:
Ultra Wide Band (UWB) radio is, in principle, a physical transmission technique suitable for all kinds of applications. Given the strong power emission constraints imposed by the regulatory bodies in the United States — but likely to be adopted by other countries as well — UWB is emerging as a particularly appealing transmission technique for applications requiring either high bit rates over short ranges or low bit rates over medium to long ranges. The high-bit-rate, short-range case includes wireless personal-area networks (WPANs) for multimedia traffic, cable replacement such as wireless USB and wearable devices like wireless high-fidelity headphones. The low-bit-rate, medium- to long-range case applies to long-range sensor networks such as indoor-outdoor distributed surveillance systems; non-real-time data applications; and in general all data transfers compatible with a transmission rate in the order of 1 Mbit/second over several tens of meters. A recent release of the IEEE 802.15.4 standard for low-rate WPANs has increased attention for the low-bit-rate case. The scenarios of applications mentioned above refer to networks that commonly adopt the self-organizing principle — that is, distributed (ad-hoc) networks. Examples of these networks are ad hoc and sensor networks, such as groups of wireless terminals located in a limited-size geographical area, communicating in an infrastructure-free fashion, and without any central coordinating unit or base station. The main goal of this tutorial is the analysis and discussion of the potentials of Ultra Wide Band (UWB) radio in the design of distributed wireless networks. Fundamental issues related to UWB systems are investigated in order to highlight the potentials of a technology which appears as one of the favourite candidates in the definition of standards for new generation wireless networks. The tutorial will contain innovative material in all respects both regarding the physical layer and upper layers. In particular, attention will focus on the capability provided by UWB to acquire accurate information about node positions in the network, which leads to the definition of flexible and power efficient procedures for both resource management and routing.


Maria-Gabriella Di Benedetto obtained her Ph.D. in Telecommunications in 1987 from the University of Rome La Sapienza, Italy. In 1991, she joined the Faculty of Engineering of University of Rome La Sapienza, where currently she is a Full Professor of Telecommunications at the Infocom Department. She has held visiting positions at the Massachusetts Institute of Technology, the University of California, Berkeley, and the University of Paris XI, France. In 1994, she received the Mac Kay Professorship award from the University of California, Berkeley. Her research interests include speech analysis and synthesis, and digital communication systems. From 1995 to 2000, she directed four European projects for the design of UMTS. Since 2000 she has been active in fostering the development of Ultra Wide Band (UWB) radio communications in Europe. Within the 5th framework, she directs for the Infocom Dept. two European projects (whyless.com and UCAN) aimed at the design and implementation of UWB ad-hoc networks. Within the 6th EU Framework her "Networking with UWB" research group participates in the PULSERS Integrated Project which will integrate UWB research and development in Europe for the next years, and in the LIAISON Integrated Project as regards the application of UWB to location-based services. She
currently also participates in the HYCON network of excellence. Dr. Di Benedetto is co-editor for the IEEE JSAC Special Issue on UWB Radio in
Multi-Access Wireless Communications December 2002) and for the Journal of Communications and Networks Special Issue on Ultra-Wideband
Communications (December 2003). She recently completed the co-edition
of two new books on UWB that will be published by 2006: UWB Communication Systems - A comprehensive overview, with T. Kaiser, D. Porcino, A. Molisch, and I. Oppermann, Hindawi Publishing Corporation, 2005, and Ultra Wideband Wireless Communications with H. Arslan and Z.N. Chen, John Wiley & Sons, Inc., 2006. Dr. Di Benedetto is the co-author with Guerino Giancola of a seminal book on Ultra Wide Band, titled
"Understanding Ultra Wide Band Radio Fundamentals" that was published
by Prentice Hall in June 2004.

Guerino Giancola received the “Laurea” degree (magna cum laude)
in Telecommunications Engineering, and the Ph.D. degree in Information and Communication Engineering from University of Rome La Sapienza, in 2001 and 2005, respectively. He is currently a research affiliate at the
INFOCOM Department of the University of Rome La Sapienza, Rome, Italy. His research interests include the analysis and modelling of Multi User Interference in Impulse Radio systems, and the design of Medium Access Control functions and protocols for UWB ad-hoc networks. Guerino
Giancola recently co-authored with Maria-Gabriella Di Benedetto a book
on Ultra Wide Band from radio to the network, titled "Understanding
Ultra Wide Band Radio Fundamentals" and published by Prentice Hall in
June 2004. He is currently involved in the European project “PULSERS – Pervasive Ultra wideband Low Spectral Energy Radio Systems” and in
the European Network of Excellence “HYCON−Hybrid Control: Taming Heterogeneity and Complexity of Networked Embedded Systems”. Guerino Giancola is a member of CNIT (Consorzio Nazionale Interuniversitario per le Telecomunicazioni) and of the IEEE Communication Society.

Abstract:
The existing wireless systems standards are diverse and include those of 2.5G, 3G, 3.5/4G, Bluetooth, WirelessLAN, and WiMAX. In the wide area network distance range, 2.5G and 3G wireless converges voice and data to a broadband wireless data network to serve multimedia applications. In the local-area-network intermediate distance range, the lower cost WirelessLAN has been growing very fast all over the world. In the personal-area-network short distance range, the even lower cost Bluetooth network is enabling many more wireless applications. In the metropolitan-area-network distance range, WiMAX is growing rapidly. In moving to emerging 4G wireless systems, the existing wireless systems need to interwork together. A high level understanding of all these networks is presented to enable one to understand how these different systems fit together and converge with the wireline systems.

H Anthony Chan received his PhD in physics at University of Maryland, College Park in 1982 and then continued post-doctorate research there in basic science. After joining the former AT&T Bell Labs in 1986, his work moved to industry-oriented research in areas of interconnection, electronic packaging, reliability, and assembly in manufacturing, and then moved again to network management, network architecture and standards for both wireless and wireline networks. He had designed the Wireless section of the year 2000 state-of-the-art Network Operation Center in AT&T. He was the AT&T delegate in several standards work groups under 3rd generation partnership program (3GPP). During 2001-2003, he was visiting Endowed Pinson Chair Professor in Networking at San Jose State University. In 2004, he joined University of Cape Town as professor in the Department of Electrical Engineering. He has taught different courses in wireless networks and in network convergence.
Prof. Chan is distinguished speaker of IEEE CPMT Society and is in the speaker list of IEEE Reliability Society since 1997.

Abstract:
Multiple-Input Multiple Output (MIMO) technology has emerged, in the last decade, as a powerful means of increasing the performance of wireless communication systems. Research on this relatively new technology has penetrated in a substantial way many fields, ranging from signal processing to communication theory and channel modeling. Equally importantly, MIMO technology has rapidly made its way into current and next generation communication standards and systems. This tutorial presents a comprehensive overview of the theory that underlies MIMO communication as well as a perspective of how it is already impacting emerging commercial systems. The tutorial is organized in 3 distinct parts. In the first part, we establish the necessary basics: information-theoretic fundamentals, modeling of fading channels, transceiver architectures, diversity, space-time coding, and channel estimation. In the second part, we examine more advanced topics: diversity vs. multiplexing trade-off, coherence vs. noncoherence, precoding and optimum signaling, and multiuser MIMO (uplink, downlink and intercell). In the third and final part, we illustrate some of the applications that MIMO is finding in cellular systems and wireless LANs, and we anticipate other exciting applications that are forthcoming.


Angel Lozano (IEEE S'90, M'99, SM'02) was born in Manresa, Spain, in 1968. He received the Engineer degree in telecommunications (with honors) from the Polytechnical University of Catalonia, Barcelona, Spain, in 1992 and the Master of Science and Ph.D. degrees in Electrical Engineering from Stanford University, Stanford, CA, in 1994 and 1998 respectively. Between 1996 and 1998 he worked for Pacific Communication Sciences Inc. and for Conexant Systems in San Diego, CA. Since

Constantinos Papadias was born in Athens, Greece, in 1969. He received the diploma of electrical engineering from the National Technical University of Athens (NTUA) in 1991 and the Ph.D. degree in signal processing (highest honors) from the Ecole Nationale Supérieure des Télécommunications (ENST), Paris, France, in 1995. From 1992 to 1995, he was Teaching and Research Assistant at the Mobile Communications Department, Eurécom, France. In 1995, he joined the Information Systems Laboratory, Stanford University, Stanford, CA, as Post­Doctoral Researcher, working in the Smart Antennas Research Group. In November 1997 he joined the Wireless Research Laboratory of Bell Labs, Lucent Technologies, Holmdel, NJ, as Member of Technical Staff and was later promoted to Technical Manager. He has authored several papers, patents and standards contributions and he received the IEEE Signal Processing Society’s 2003 Young Author Best Paper Award. He participates in several research projects within the European Commission’s Information Society Technologies (IST) program and represents Lucent Technologies at the steering board of the Wireless World Research Forum (WWRF). He is guest co-editor of a special issue on MIMO Communications and Signal Processing of the EURASIP Journal on Applied Signal Processing, as well as an upcoming book on MIMO systems. He is a member of the Signal Processing for Communications Technical Committee of the IEEE Signal Processing Society and Associate Editor for the IEEE Transactions on Signal Processing. Dr. Papadias is a Senior Member of IEEE and a member of the Technical Chamber of Greece.

Abstract:
Simple calculations indicate that the provision of very high data rates, beyond small pockets, is not feasible with the conventional wireless network architectures. Even the recent advances in antenna technologies (such as smart antennas and MIMO systems) and signal processing techniques (such as advanced channel coding methods) do not seem to be sufficient to alleviate the tremendous potential stress that will be incurred on the link budget in future wireless networks with the aggregate rates of 100 – 1000 Mbps. Towards that end, the augmentation of the current networks with the multihop capability is considered to be the most feasible architectural upgrade to facilitate almost ubiquitous high data rate coverage in the most cost-effective manner. In this context, there has been growing interest in both academia and industry in the concept of relaying in infrastructure-based wireless networks such as next generation cellular (B3G, 4G), WLAN (WiFi, HiperLAN2), and broadband fixed wireless (802.16, WiMax, HiperMAN) networks. Multihop communications can be facilitated through the use of low-power/low-cost fixed relays deployed by the service provider, or through other wireless terminals in the network. This tutorial will present the concept of relaying in infrastructure-based networks, with its fundamental dynamics, potentials and limitations. The tutorial will cover physical layer issues (including novel diversity techniques, virtual antenna arrays, and cooperative relaying), systems level issues (including multiple access, ARQ, radio resource management, coverage, capacity, and throughput) and networking issues (including intelligent routing, load balancing, and handoff).

Halim Yanikomeroglu was born in Giresun, Turkey, in 1968. He received a B.Sc. degree in Electrical and Electronics Engineering from the Middle East Technical University, Ankara, Turkey, in 1990, and an M.A.Sc. degree in Electrical Engineering (now ECE) and a Ph.D. degree in Electrical and Computer Engineering from the University of Toronto, Canada, in 1992 and 1998, respectively. Dr. Yanikomeroglu was with the Research and Development Group of Marconi Kominikasyon A.S., Ankara, Turkey, from January 1993 to July 1994. Since 1998 Dr. Yanikomeroglu has been with the Department of Systems and Computer Engineering at Carleton University, Ottawa, where he is now an Associate Professor with tenure. His research interests include almost all aspects of wireless communications with a special emphasis on infrastructure-based multihop/mesh/relay networks. At Carleton University, he teaches graduate courses on digital, mobile, and wireless communications.
Dr. Yanikomeroglu has been involved in the steering committees and technical program committees of numerous international conferences in wireless communications; he has also given several tutorials in such conferences. He was the Technical Program Co-Chair of the IEEE Wireless Communications and Networking Conference 2004 (WCNC'04). He was an Editor for IEEE Transactions on Wireless Communications during 2002-05, and a guest editor for Wiley Journal on Wireless Communications & Mobile Computing; he was an Editor for IEEE Communications Surveys & Tutorials for 2002-03. Currently he is serving as the Chair of the IEEE Communications Society’s Technical Committee on Personal Communications (TCPC), he is also a member of IEEE ComSoc’s Technical Activites Committee (TAC). He is a member of the Advisory Committee for Broadband Communications and Wireless Systems (BCWS) Centre at Carleton University. Dr. Yanikomeroglu is a registered Professional Engineer in the province of Ontario, Canada.

Abstract:
IPTV, or, Television over IP, is generating huge interest in the telecom industry lately. Telecom service providers (Telcos) view IPTV as a ticket to compete against the Cable industry by offering television services over Fiber/DSL lines. By offering video over their access infrastructure, Telcos hope to match the voice, video and data (“triple-play”) offering of Cable providers. However, unlike Cable television (CATV) systems that are typically analog transmissions on a broadcast medium, IPTV architectures deliver digital television using IP-multicast over point-to-point hybrid Fiber/DSL infrastructure. Unlike the more mature CATV infrastructure, IPTV leverages the most recent advances in networking and video compression technologies that while enabling more efficient networks, is also causing Telcos growing pains in field deployments.

Swarup Acharya is a Technical Manager in the Integrated Networks Research Department at Bell Labs. He received his Ph.D. from Brown University and a B.Tech (Hons.) from Indian Institute of Technology, Kharagpur. He performs research on IPTV and next-gen access, data and optical networking, network management and mobile computing. He has published extensively in those areas, authoring some of the most frequently cited papers in mobile database systems. He also has more than 25 patents approved, or pending, with the USPTO. Dr. Acharya actively collaborates with Lucent business units to transform his research into market-differentiating products. Dr. Acharya is an experienced speaker having presented to both technical and non-technical audiences including conferences, tradeshows, panels and Lucent customer meetings. His presentation at the MPLS 2004 tradeshow was one of the top-rated talks. He recently was awarded the Speaker of the Year award for 2005 by the IEEE New Jersey Coast section for his presentation on “MPLS Network Tuning: How to Get Most from Your Network”. He is also an invited speaker at the IEEE Bandwidth Management workshop next month. His CV listing his various speaking engagements to date is available from his home page.

Anurag Srivastava received his B.E (E.E) degree from University of Gorakhpur, India and M.S (Comp Sc.) from Indian Institute of Science, Bangalore in1997 and 1999 respectively. He has been working as Member of Technical Staff at Integrated Networks Research department of Bell Labs, Lucent Technologies since 2000. His research interests are in the area of video delivery over IP networks, location based technologies in wireless networks, MPLS and SONET/SDH protocols, and in solving complex routing and optimization problems in communication networks. His research work on location-based technologies was featured on NBC and over twenty affiliate stations in 2004. He has over 10 patents awarded or pending and several research papers to his credit.
He has spoken at several major telecom conferences and presented his research work in industry trade shows. Recently, he gave a tutorial at the IEEE Sarnoff Symposium 2005 on the Video over Next-generation DSL Networks: Challenges and Opportunities. Most recently, he demonstrated his research work on "Universal IPTV: Anywhere, Anytime, Any device" at Supercomm 2005 in Chicago.

Abstract:
Wireless multimedia communication devices are becoming ever more powerful and sophisticated, as seen on television. Nonetheless, the provision of realistic “tele-presence” services requires a further quantum leap from the current state-of-the-art represented by the popular mobile telephone. Based on the presenters monographs and papers (www.ecs.soton.ac.ukpeoplelh) [1]-[8] he recent advances in this challenging field are reviewed, commencing with a portrayal of the related multimedia source codecs, advanced channel codecs and burst-by-burst adaptive modems, such as those used by the High-Speed Downlink Packet Access (HSDPA) mode of the third-generation (3G) wireless systems, including space time codecs and other MIMO systems.
Commencing with a review of the Shannonian information-theoretic design principles, powerful system design examples will be presented, which are capable of approaching the channel capacity. The limitations of the Shannonian lessons in the context of realistic fading, rather than Gaussian channels will be detailed. To elaborate a little further, most multimedia source signals are capable of tolerating lossy, rather than lossless delivery to the human eye, ear and other human sensors. The corresponding lossy and preferably low-delay multimedia source codecs however exhibit unequal error sensitivity, which is not the case for Shannon’s ideal entropy codec. Numerous jointly optimised turbo transceiver designs capable of providing unequal error protection for MPEG-4 coding aided wireless video telephony and audio transmission will be highlighted, which exhibit a performance close to the channel capacity. Sophisticated multi-stage iterative detectors will be studied, which exchange extrinsic information across several detection stages, including Space-Time Trellis Coding (STTC) invoked for the sake of mitigating the effects of fading, as well as bandwidth efficient Turbo Trellis Coded Modulation (TCM) or Bit-Interleaved Coded Modulation (BICM). These multistage turbo systems require the employment of the powerful iterative receiver design tools referred to as three-dimensional (3D) Extrinsic Information Transfer (EXIT) Charts.


Lajos Hanzo received his first-class Master degree in electronics in 1976, his PhD in 1983 and his Doctor of Sciences (DSc) degree in 2004. He is a Fellow of the Royal Academy of Engineering (FREng). During his career in Telecommunications he has held various research and academic posts in Hungary, Germany and the UK. Since 1986 he has been with the School of ECS, University of Southampton, UK, where holds the Chair in Telecommunications. He co-authored 11 books [1]-[10] totalling 8000 pages on mobile radio communications, published in excess of 500 research papers, organised and chaired conference sessions, presented overview lectures and has been awarded a number of distinctions. Currently he heads an academic research team, working on a range of research projects in the field of wireless multimedia communications sponsored by industry, the Engineering and Physical Sciences Research Council (EPSRC) UK, the European IST Programme and the Mobile Virtual Centre of Excellence (VCE), UK. He is an enthusiastic supporter of industrial and academic liaison and he offers a range of industrial courses. Lajos is also an IEEE Distinguished Lecturer of both the Communications as well as the Vehicular Technology Society and a Fellow of both the IEE and IEEE. For further information on research in progress and associated publications please refer to http://www-mobile.ecs.soton.ac.uk;

Abstract:
Recently, Voice over IP (VoIP) applications have been very popular in the area of communications protocol development. The call control protocol for VoIP applications is the Session Initiation Protocol (SIP). As defined in RFC 3261, SIP specification is written in English, with several call flow examples shown in accompanying standards such as RFC 3665 for supplementary services of hold, conference, etc. In general, due to its informal nature, the specifications of SIP procedures are intended to be examples for SIP developers and hence represent only a limited set of functionality.

The expected behavior of VoIP