Prof. Lajos Hanzo
Department of ECS, University of Southampton, UK
e-mail: lh@ecs.soton.ac.uk
http://www-mobile.ecs.soton.ac.uk

This overview is based on an amalgam of the Wiley/IEEE Press monographs [1]-[5]. The short course provides an insight into the effects of turbo-coded high-end 3G-like systems using adaptive modulation aided transceivers as well as smart antennas and a range of other efficient networking techniques on the achievable teletraffic capacity of adaptive wireless systems.

This research-oriented presentation considers the joint benefits of both adaptive physical and adaptive network-layer performance enhancement techniques. More specifically, conventional systems would drop a call in progress, if the communications quality falls below the target quality of service and it cannot be improved by handing over to another physical channel.

By contrast, the adaptive transceivers of the near future are expected to simply 'instantaneously drop the throughput, rather than dropping the call' by reconfiguring themselves in a more robust mode of operation. It is demonstrated that the proposed beam-forming and adaptive transmission techniques may double the expected teletraffic capacity of the system, whilst maintaining the same AVERAGE performance as their conventional fixed-mode counterparts.

We continue by focussing our attention on a design alternative based on CDMA system employing Loosely Synchronized (LS) spreading codes, which exhibit a so-called Interference Free Window (IFW), where both the auto-correlation and cross-correlation of the spreading codes become zero. Therefore LS codes have the promise of mitigating the effects of both ISI and MAI in time dispersive channels. Hence, LS codes have the potential of increasing the capacity of CDMA networks

and dispense with multi-user detection.

Whilst this overview is ambitious in terms of providing a research-oriented outlook, potential attendees require only a modest background in wireless communications. Network operators, service providers, managers and researchers embarking on the joint optimisation of the physical and network layer may find the coverage of the presentation beneficial. The participants will receive a set of slides as supporting material.

References

[1] L. Hanzo, T.H. Liew, B.L. Yeap: Turbo Coding, Turbo Equalisation and Space-Time Coding, John Wiley, August 2002, ISBN 0-470-84726-3, 766 pages 

[2] L. Hanzo, C.H. Wong, M.S. Yee: Adaptive wireless transceivers: Turbo-Coded, Turbo-Equalised and Space-Time Coded TDMA, CDMA and OFDM systems, John Wiley, March 2002, ISBN 0-470-84689-5 752 pages 

[3] J.S. Blogh, L. Hanzo: Third-Generation Systems and Intelligent Wireless Networking - Smart Antennas and Adaptive Modulation, John Wiley, April 2002, ISBN 0-470-84519-8 430 pages

[4] L. Hanzo, M. M� unster, B.J. Choi and T. Keller: OFDM and MC-CDMA for Broadband Multi-user Communications, WLANs and Broadcasting, John Wiley - IEEE Press, July 2003, 980 pages

[5] L. Hanzo, L-L. Yang, E-L. Kuan and K. Yen: Single-and Multi-Carrier DS-CDMA: Multi-User Detection, Space-Time Spreading, Synchronisation, Standards and Networking, IEEE Press - John Wiley, August 2003, 1060 pages

Biography Prof. Lajos Hanzo
Hanzo, FREng, FIEEE, FIEE, DSc. During his 27-year carreer he has held various academic and research positions in Hungary, Germany and the UK. Since 1986 he has been with the University of Southampton, where he holds the Chair of Telecommunications. Over the years he has co-authored 11 books on mobile radio communications, published in excess of 500 research papers and has been awarded a number of distinctions.
He is an IEEE Distinguished Lecturer. For further information on research in progress and for associated papers and book chapters please refer to http://www-mobile.ecs.soton.ac.uk