Title :
New MAC design to accommodate joint detection techniques in a MIMO-OFDM-based HIPERMAN system
Author :
Fan, Linghang ; Hoshyar, Reza ; Fazel, Sadegh ; Roberts, Roshano ; Politis, Christos ; Tafazolli, Rahim
Author_Institution :
Centre for Commun. Syst. Res., Surrey Univ., Guildford, UK
Abstract :
One of the key research issues in wireless systems is how to improve the system capacity. MIMO has been proven as an effective method to achieve this. Previously, the focus of MIMO-OFDM research in high performance metropolitan area network (HIPERMAN) systems was on space time coding (STC) and beamforming. Recently, multi-user detection (MUD) has emerged as a novel approach in MIMO-OFDM-based HIPERMAN systems. In this paper, we have proposed a new MAC design, which includes the new and flexible MAC frame structure and an efficient dynamic resource allocation algorithm, in order to accommodate the MUD techniques in uplink transmission in HIPERMAN systems. The performance of the new MAC design has been evaluated via simulation means. The simulation results show that the new MAC design based on MUD can significantly increase the system capacity.
Keywords :
MIMO systems; OFDM modulation; access protocols; metropolitan area networks; multiuser detection; resource allocation; telecommunication links; MAC design; MIMO-OFDM-based HIPERMAN system; high performance metropolitan area network; joint detection techniques; multiuser detection; resource allocation algorithm; uplink transmission; wireless systems; Algorithm design and analysis; Array signal processing; Base stations; Downlink; Heuristic algorithms; MIMO; Mobile communication; Multiuser detection; Resource management; Signal to noise ratio;
Conference_Titel :
Local and Metropolitan Area Networks, 2004. LANMAN 2004. The 13th IEEE Workshop on
Print_ISBN :
0-7803-8551-9
DOI :
10.1109/LANMAN.2004.1338436
