Presenters
The Wireless Winter School has been fortunate to host international leading experts in the wireless theoretical and practical fields. Below is some background information about our speakers.
Title: Broadband wireless CDMA technique for the next generation mobile communications systems
Fumiyuki Adachi received his B.S and Dr. Eng. degrees in electrical engineering from Tohoku University, Sendai, Japan, in 1973 and 1984, respectively. In April 1973 he joined the Electrical Communications Laboratories of Nippon Telegraph & Telephone Corporation (now NTT) and conducted various types of research related to digital cellular mobile communications. From July 1992 to December 1999, he was with NTT Mobile Communications Network, Inc. (now NTT DoCoMo. Inc.) where he lead a research group on wideband/broadband CDMA wireless access for IMT-2000 and beyond. Since January 2000 he has been with Tohoku University , Sendai, Japan, where he is a Professor of Electrical and Communication Engineering at Graduate School of Engineering. His research interests are in CDMA and TDMA wireless access techniques. CDMA spreading code design, Rake receiver, transmit/receive antenna diversity, adaptive antenna arrays, bandwidth-efficient digital modulation and channel coding, with particular application to broadband wireless communications systems. From October 1984 to September 1985 he was a United Kingdom SERC Visiting Research Fellow in the Department of Electrical Engineering and Electronics at Liverpool University. From April 1997 to March 2000 he was a visiting Professor at Nara Institute of Science and Technology, Japan. He was a recipient of IEICE Achievement Award 2002 and was a co-recipient of the IEICE Transactions best paper of the year award 1996 and again in 1998. He is an IEEE Fellow and was a co-recipient of the IEEE Vehicular Technology Transactions best paper of the year award 1980 and again in 1990 and also a recipient of Avant Garde award 2000.
Title: Wireless multimedia turbo transceivers
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 [1] - [8]
The 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.
Lajos Hanzo, Fellow of the Royal Academy of Engineering (FREng), received his Master degree in electronics in 1976 and his doctorate in 1983. In 2004 he was awarded the Doctor of Sciences (DSc) degree by the University of Southampton, UK. During his 28-year career in telecommunications he has held various research and academic posts in Hungary, Germany
and the UK. Since 1986 he has been a member of academic staff in the School of Electronics and Computer Science, University of Southampton, UK, where he currently holds the Chair in Telecommunications. He has co-authored 10 John Wiley/IEEE Press totalling about 8000 pages on mobile radio communications, published
in excess of 500 research papers,
organised and chaired conference sessions, presented overview lectures and
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 Society and the Vehicular
Society as well as a Fellow of both the IEEE and the IEE.
For further
information on research in progress and associated publications please refer to
http://www-mobile.ecs.soton.ac.uk
Title: Turbo-processing in MIMO wireless communications
Abstract: The principle of iterative processing as used in the turbo-decoder (hence 'turbo-processing') has been shown over the past decade to have many applications beyond FEC decoding, in particular in joint decoding and channel estimation, synchronisation, multi-user detection, etc. We will consider the principles of such turbo-processing in general, and the types of scheme, including the difference between ML detection and interference cancellation approaches, and the use of the expectation-maximistaion (EM) algorithm. We will then consider some turbo-synchronisation and channel estimation techniques in particular, including MIMO channel estimation, as an example. Finally we will also look at turbo-processing for MIMO and multi-user detection.
Alister Burr received his BSc from the University of Southampton, UK in 1979, and his PhD from Bristol in 1984. Since 1985 he has been at University of York, where he has been Professor of Communications since 2001. His research interests are in modulation and coding for wireless systems, and especially turbo-codes and iterative techniques, MIMO systems, and space-time codes. A recent interest is coding for wireless mesh networks: network coding. He was a Working Group Chair in the European COST 273 programme [link: http://www.lx.it.pt/cost273/] 'Towards Mobile Broadband Multimedia Networks', and is a member of the Network of Excellence NEWCOM [link: https://newcom.ismb.it/]. He has also served as Visiting Professor at Vienna University of Technology.
http://www.elec.york.ac.uk/comms/people/alisterburr.html
Title: Limit-Approaching Signal Detection based on Energy Spreading Transform (EST)
Abstract:
This talk will discuss the problem of resolving interference in wireless communications. Specifically we will compare equalization based on conventional approaches to those based on EST methods. We will extend the system model to MIMO signal detection and space-time systems, as well as frequency selective channels.
Following his B.Sc. and M.Eng. studies, he taught at Southeast University, Nanjing, China,
for about five years. After receiving his Ph.D. degree in 1994, he spent about a year and half at the
University of Maryland at College Park, Maryland, as a post-doctoral research associate. He
worked at AT&T Labs - Research for about four years before he joined the School of Electrical
and Computer Engineering at Georgia Tech in August 2000. His general research interests include
wireless communications and statistical signal processing . He served as a guest editor for a
special issue on Signal Processing for Wireless Communications for the IEEE J-SAC and is
currently serving as an editor for Wireless Communication Theory for the IEEE Transactions
on Communications.
Title: Opportunistic feedback - limited feedback protocols
Abstract:
Channel state information can be used by the transmitter to enhance diversity and capacity in wireless systems. Unfortunately, the number of channel parameters grows proportionally with the number of transmit antennas, number of receive antennas, extent of multipath, and number of users. In this presentation we present an overview of techniques for reducing channel state information, including recent work on limited feedback in MIMO systems. We then present a feedback protocol framework for dealing with the multiuser feedback problem in which users with good channels compete to inform the base station about their channel state. Extensions of this protocol to single antenna, MIMO, OFDM, and MIMO-OFDM are discussed. Recent results on online algorithms that use distribution information are also presented.
Robert W. Heath Jr. received his B.S. and M.S. degrees from the
University of Virginia and his Ph.D. from Stanford University.
From 1998 to 2001, played a key role in the design and implementation of
the physical and link layers of perhaps the first commercial MIMO-OFDM communication system at Iospan Wireless Inc. Since 2002 he has been an Assistant Professor in the Department of Electrical and Computer Engineering at The University of Texas at Austin and an active member of the Wireless Networking and Communications Group. He has consulted for a variety of companies including Bandspeed Inc., Beceem Communications Inc., Freescale Semiconductor, Leap Frog Wireless Inc., Motorola, and is the founder and CEO of MIMO Wireless Inc. He is on the technical advisory board of Ruckus Wireless Inc. His research interests cover a broad range of MIMO communication including antenna design, practical receiver architectures, limited feedback techniques, ad hoc networking, and scheduling algorithms. He is an Associate Editor for the IEEE Transactions on Communication and the IEEE Transactions on Vehicular Technology.
Title: Antenna and Algorithm Design in MIMO Communication Systems
Exploiting the Spatial Selectivity of Wireless Channels
Abstract:
The benefits of multiple-input multiple-output (MIMO) technology are obtained through a combination of antenna arrays that can provide spatial diversity and algorithms that can adapt to the propagation channel. Antenna arrays have to be designed to be robust in different propagation scenarios and provide the degrees of spatial diversity expected by the algorithms. The algorithms can adaptively reconfigure the transmission methods by tracking the changing channel conditions. The premise of my work presented in this talk is that antenna arrays and algorithms at the physical layer can be designed, based on performance metrics from different layers, to exploit the channel spatial selectivity, resulting in improved system performance.
In this talk, I present performance analysis and design methodology of MIMO arrays, employing pattern diversity technique, in spatially correlated channels. The proposed array designs consist of collocated circular patch antennas, or circular patch arrays (CPAs). I first demonstrate the benefit of pattern diversity obtained through CPAs over conventional space diversity technique. Then I propose a novel design methodology for compact MIMO arrays optimized with respect to microwave theory and communication theoretic metrics for given size constraints. This talk also presents new adaptive algorithms at the physical layer to switch between different MIMO transmission schemes, based on statistical channel information. These adaptive algorithms exploit the spatial selectivity inherent in the channel and are designed to enhance the spectral efficiency of next generation wireless systems, for predefined target error rate.
Antonio Forenza received his B.S. and M.S. degrees in Telecommunications Engineering from Politecnico di Torino (Italy),
and the diploma of specialization in Mobile Communications Engineering from
Institut Eurécom (Sophia Antipolis, France), in 2001. He is currently pursuing a Ph.D. program in Electrical Engineering at The University of Texas at Austin
(TX, USA). In 2001 he interned as systems engineer at Iospan Wireless, Inc., San Jose, CA, a
startup company that developed the first commercial MIMO-OFDM communication
system. His main research focus was on link-adaptation and physical layer
algorithm design. In the fall 2001 he joined
ArrayComm, Inc. (San Jose, CA), as systems research engineer. In ArrayComm he was actively involved in the design and implementation of smart antenna systems for the 3G WCDMA wireless platform. Over the summer 2004 and 2005 he interned as research engineer at Samsung Advanced
Institute of Technology (SAIT, Suwon, Korea) and
Freescale Semiconductor, Inc. (Austin,
TX), respectively, developing adaptive MIMO transmission and MU-MIMO precoding techniques for 3GPP, IEEE 802.11n and IEEE 802.16e standards systems.
His research interests include wireless MIMO-OFDM and WCDMA systems, MIMO antenna design, adaptive MIMO transmission techniques, precoding methods for MU-MIMO, smart antenna signal processing.
.
Title: Lattice Codes and their Application to Communication Systems
Vaughan Clarkson received the B.Sc. degree in mathematics and the B.E. degree with first-class honours in computer systems engineering from The University of Queensland in 1989 and 1990, respectively. He received the Ph.D. degree in systems engineering from The Australian National University in 1997.
Starting in 1988, he was employed by the Defence Science and Technology Organisation, first as a Cadet, later as a Professional Officer, and finally as a Research Scientist. From 1998 to 2000, he was a Lecturer at The University of Melbourne. Since 2000, he has been a Senior Lecturer in the School of Information Technology and Electrical Engineering at The University of Queensland. In 2005, he was a Visiting Professor in the Department of Electrical & Computer Engineering at The University of British Columbia, Vancouver, Canada. His research interests include statistical signal processing for communications and defence, image processing, information theory and lattice theory.
|
