Title :
Channel aware scheduling in MIMO based WLANs in the presence of channel uncertainty
Author :
Mirkovic, Jelena ; Walke, Bernhard ; Garcia, Jordi Gomez
Author_Institution :
ComNets, RWTH Aachen Univ., Aachen, Germany
Abstract :
In this paper system level performance evaluation of channel aware schedulers that apply previously presented multiple input-multiple output (MIMO) link adaptation algorithms is given. The analyzed schedulers operate in single-user (SU) and in multi-user (MU) mode, and adapt either only modulation and coding scheme, or MIMO scheme in addition. The performance evaluation is done by comparative analysis of saturation throughput achievable by different schedulers, investigating the impact of MU diversity and channel uncertainty.
Keywords :
MIMO communication; diversity reception; encoding; modulation; multiuser channels; scheduling; wireless LAN; wireless channels; MIMO based WLAN; channel aware scheduling; channel uncertainty; coding scheme; modulation scheme; multiple input-multiple output; multiuser diversity; multiuser mode; single-user mode; MIMO; Modulation coding; Physical layer; Quality of service; Receiving antennas; Scheduling algorithm; Signal processing algorithms; Space technology; Throughput; Uncertainty;
Conference_Titel :
Wireless Communication Systems. 2008. ISWCS '08. IEEE International Symposium on
Conference_Location :
Reykjavik
Print_ISBN :
978-1-4244-2488-7
Electronic_ISBN :
978-1-4244-2489-4
DOI :
10.1109/ISWCS.2008.4726087
