WIRELESS COST FUNCTIONS, OPTIMIZATION TOOLS AND SOLUTIONS

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• Professor Lajos Hanzo, School of ECS, University of Southampton
• Monday 21 December 2015, 15:30-16:30
• Gabor Seminar Room, 611, level 6, EEE Dept. .

If you have a question about this talk, please contact Wiesia R Hsissen.

Abstract: Following a light-hearted introduction to the evolution of wireless communications from the Shannonian Lessons to the emerging 5G-style systems, a recital on a range of challenging large-dimensional wireless optimization problems is provided. Typical examples can be found in the optimization of wireless networking solutions aiming for minimizing the interference imposed on other communicating users, whilst minimizing the entire network’s power consumption. Another demanding problem is the simultaneous optimization of the received signal’s quality for a multiplicity of communicating subscribers. In these potentially NP-hard problems it is typically unrealistic to carry out a maximum likelihood-style full search, but this problem may be circumvented with the aid of bio-inspired random guided optimization techniques, which are capable of ”capturing the maximum likelihood solution with a high probability, whilst restricting the search to a tiny fraction of the entire search space”… A number of challenging objective functions (OFs) will be highlighted in the context of sophisticated MIMO multi-user detection (MUD) and multi-user transmission (MUT) as well as networking problems. Then a range of bio-inspired optimization tools will be alluded to, such as Genetic Algorithms (GA), Ant Colonies (ACO), Particle Swarm Optimization PSO ), Harmony Search (HS), Differential Evolution (DE) etc. in order to design solutions capable of approaching the optimum performance at a fraction of the full-search-based complexity. Our goal is that of approaching the optima of the above-mentioned OFs by exploiting the power of these techniques for the sake of holistically optimizing the family of sophisticated wireless systems.

Brief Bio: Professor Lajos Hanzo FREng, FIEEE , FIET, RS Wolfson Fellow, received his 5-year Master degree in electronics from the Technical University of Budapest in 1976, his doctorate in 1983 and his Doctor of Sciences (DSc) degree in 2004. 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. His current research interests are featured at(http://www-mobile.ecs.soton.ac.uk)

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