Slotted ALOHA with MIMO spatial multiplexing

Hunchangsith, K., Bialkowski, M. E. and Portmann, M. (2008). Slotted ALOHA with MIMO spatial multiplexing. In: H. Zhou, Wireless Communications, Networking and Mobile Computing 2008. 4th International Conference on Wireless Communications, Networking and Mobile Computing 2008 (WiCOM '08), Dalian, China, (1-4). 12-14 October 2008. doi:10.1109/WiCom.2008.80

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Author Hunchangsith, K.
Bialkowski, M. E.
Portmann, M.
Title of paper Slotted ALOHA with MIMO spatial multiplexing
Conference name 4th International Conference on Wireless Communications, Networking and Mobile Computing 2008 (WiCOM '08)
Conference location Dalian, China
Conference dates 12-14 October 2008
Proceedings title Wireless Communications, Networking and Mobile Computing 2008
Journal name 2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Place of Publication Piscataway NJ, U.S.A.
Publisher IEEE - Institute of Electrical Electronics Engineers Inc.
Publication Year 2008
Sub-type Fully published paper
DOI 10.1109/WiCom.2008.80
Open Access Status
ISBN 978-1-4244-2107-7
Editor H. Zhou
Start page 1
End page 4
Total pages 4
Language eng
Abstract/Summary Many contention protocols in wireless networks such as carrier sense multiple access with collision avoidance (CSMA/CA) incorporate methods that minimize probability of collision. However there is another possible way that collisions can be avoided, that is by getting some help from physical layer technologies. It has been proved that multiple-input-multiple-output (MIMO) technology with spatial multiplexing (SM) operating in a rich scattering environment can resolve up to M different data streams where M is the minimum number of transmitting or receiving antennas. In this paper, we evaluate the performance of slotted ALOHA access protocol employing MIMO with SM. The purpose of this analysis is to gain insight and directions for developing access protocol to fully utilise benefits of MIMO technology from the network point of view. We evaluate an upper bound performance in terms of efficiency (success rate) and corresponding capacity utilisation efficiency, collision rate, and an average number of successful transmissions per slot. We find a substantial gain in efficiency in comparison with the conventional slotted ALOHA. However, we also discover that an additional gain is diminished when more antennas at the receiver are included. Mathematical derivations followed by numerical simulations and discussion are presented.
Subjects 080503 Networking and Communications
890101 Fixed Line Data Networks and Services
E1
Keyword MIMO communication
Spatial multiplexing
Q-Index Code E1
Q-Index Status Confirmed Code

 
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Created: Fri, 17 Apr 2009, 03:29:28 EST by Ms Kimberley Nunes on behalf of School of Information Technol and Elec Engineering