MIMO Techniques for 4/5G Wireless Systems

Multiplexing gain versus diversity gain is the fundamental trade-off that has been studied for multiple input multiple output (MIMO) systems. In this talk, two techniques, groupwise space time block code (GSTBC) and lattice-reduction based detection, are discussed to demonstrade the achieved diversity/multiplexing gains. By employing a diagonal structure, GSTBC allows affordable complexity at the receiver while still retaining certain diversity gain advantage. The second technique is based on lattice reduction method to enable optimal MIMO signal detection at the receiver where high data rate is targeted.

Dr. Huan X Nguyen received his BSc degree at the Hanoi University of Science and Technology (Vietnam) in 2000. He then pursued his PhD at the University of New South Wales (Australia) during 2003-2006. Since then, he has worked in various posts at several universities in the UK. He is currently a Senior Lecturer at the School of Science and Technology, Middlesex University (London, UK). His research interests include PHY security, energy harvesting, MIMO techniques, network coding, relay communication, cognitive radio, and multi-carrier systems. Dr Nguyen is a Senior Member of the IEEE. He is currently serving as Editor of the KSII Transactions on Internet and Information Systems.