A MIMO-Based collision mitigation scheme in uplink WLANs

Although there exist random backoff schemes in WLANs, a collision problem among stations (STAs) is one of the critical factors that degrade the performance of WLAN systems. To mitigate this collision problem, a MIMO-based uplink collision mitigation scheme is proposed by utilizing additional degrees of freedom through multiple antennas, and, consequently, enhances the system performance. Analysis and simulation results show that there is at least 30% throughput enhancement in a basic service set (BSS) with more than 10 STAs, compared to the performance of conventional WLANs in case of saturation traffic.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2008-06
Language
ENG
Keywords

IEEE-802.11 DCF; PERFORMANCE

Citation

IEEE COMMUNICATIONS LETTERS, v.12, no.6, pp.417 - 419

ISSN
1089-7798
DOI
10.1109/LCOMM.2008.071672
URI
http://hdl.handle.net/10203/8906
Appears in Collection
EE-Journal Papers(저널논문)
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