Investigations into a slotted ALOHA protocol for a mimo system operating under Rician channel conditions

Hunchangsith, Konglit, Liu, Xia, Bialkowski, Marek E. and Portmann, Marius (2010). Investigations into a slotted ALOHA protocol for a mimo system operating under Rician channel conditions. In: Beata J. Wysocki and Tadeusz A. Wysocki, 4th International Conference on Signal Processing and Communication Systems, ICSPCS'2010 - Proceedings. International Conference on Signal Processing and Communication Systems, Gold Coast , QLD, Australia, (1-5). 13-15 December 2010. doi:10.1109/ICSPCS.2010.5709666


Author Hunchangsith, Konglit
Liu, Xia
Bialkowski, Marek E.
Portmann, Marius
Title of paper Investigations into a slotted ALOHA protocol for a mimo system operating under Rician channel conditions
Conference name International Conference on Signal Processing and Communication Systems
Conference location Gold Coast , QLD, Australia
Conference dates 13-15 December 2010
Proceedings title 4th International Conference on Signal Processing and Communication Systems, ICSPCS'2010 - Proceedings
Journal name 4th International Conference on Signal Processing and Communication Systems, ICSPCS'2010 - Proceedings
Place of Publication Piscataway, NJ, USA
Publisher IEEE (Institute for Electrical and Electronic Engineers)
Publication Year 2010
Sub-type Fully published paper
DOI 10.1109/ICSPCS.2010.5709666
ISBN 9781424479085
Editor Beata J. Wysocki
Tadeusz A. Wysocki
Issue Article number 5709666
Start page 1
End page 5
Total pages 5
Collection year 2011
Language eng
Abstract/Summary This paper investigates a Slotted ALOHA protocol for a multi-user wireless system operating under partial Line of Sight (LOS) conditions in which both the base station and mobile users are equipped with multiple element antennas. The investigations focus on how physical layer parameters such as spatial correlation, mutual coupling and Rician factor K affect the system capacity. Probability model for a Slotted ALOHA under the condition of a Rician channel model to form two-layer (Physical-Medium Access Control) expressions is considered. The model includes spatial correlation and mutual coupling in array antennas. The obtained results show that spatial correlation has a negative effect on the system performance while mutual coupling can improve capacity under the small spacing of array antenna elements. It is also shown that active LOS nodes in the network can have an adverse impact on the system capacity. Controlling probability of transmission of LOS nodes is presented as a possible solution to the problem. ©2010 IEEE.
Keyword Cross-layer evaluation
K factor
MIMO
Multiple antennas
Mutual coupling
Random access protocol
Spatial correlation
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Poster Session 3 – Wireless Systems

 
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Created: Fri, 04 Mar 2011, 11:12:50 EST by Professor Marek Bialkowski on behalf of School of Information Technol and Elec Engineering