NDLI: Enhancements to IEEE 802.11 DCF collision avoidance based on MIMO Adaptive Spatial Channels Sharing

Content Provider	IEEE Xplore Digital Library
Author	Ashtaiwi, A. Hassanein, H.S.
Copyright Year	2009
Description	Author affiliation: School of Computing, Queen's University, USA (Hassanein, H.S.) \|\| Electrical and Computer Engineering, Queen's University, USA (Ashtaiwi, A.)
Abstract	In this paper, the IEEE 802.11 Distributed Coordination Function (DCF) collision avoidance mechanism of Wireless Local Area Networks (WLANs) is enhanced based on Adaptive Spatial Channels Sharing (ASCsS) of Multiple Inputs Multiple Outputs (MIMO) transmission systems. Simply, instead of accessing the medium using all the spatial channels, to avoid collision the contending nodes use an optimal subset of the available spatial channels during the medium contention period. As the total number of concurrent used spatial channels is fewer than or equal to the spatial degree-of-freedom, receivers can still decode the transmitted singles of multiple medium access contenders. The performance of the ASCsS scheme demonstrates that the scheme further reduces medium access collisions and boosts the medium utilization.
Starting Page	564
Ending Page	569
File Size	2581984
Page Count	6
File Format	PDF
ISBN	9781424446728
ISSN	15301346
DOI	10.1109/ISCC.2009.5202311
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-05
Publisher Place	Tunisia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Collision avoidance MIMO Wireless LAN Computer networks Distributed computing Decoding Bandwidth Media Access Protocol Performance analysis Receiving antennas performance analysis Wireless LAN (WLAN) Medium Access Control (MAC) collision avoidance
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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