Investigation into the effects of spatial correlation on MIMO channel estimation and capacity

Liu, X., Bialkowski, M. E. and Wang, F. (2008). Investigation into the effects of spatial correlation on MIMO channel estimation and capacity. In: L. Cuthbert, 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.2008.91


Author Liu, X.
Bialkowski, M. E.
Wang, F.
Title of paper Investigation into the effects of spatial correlation on MIMO channel estimation and capacity
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.2008.91
ISBN 978-1-4244-2107-7
Editor L. Cuthbert
Start page 1
End page 4
Total pages 4
Language eng
Abstract/Summary This paper reports on investigations into the effects of spatial correlation on channel estimation and capacity of a multiple input multiple output (MIMO) system. Minimum mean square error (MMSE) method is applied for channel estimation under a correlated channel scenario. Simulation results for a 4 times 4 MIMO system with the Jakes model describing a channel between a base station and a mobile station demonstrate a trade-off between the effects of spatial correlation, channel estimation and capacity. For low values of signal to noise ratio (SNR), spatial correlation decreases channel estimation errors and improves capacity. For high values of SNR, spatial correlation has a less pronounced effect on improving channel estimation and thus the MIMO capacity is adversely affected by the decreased channel matrix rank.
Subjects E1
100510 Wireless Communications
899999 Information and Communication Services not elsewhere classified
Keyword MIMO communication
Spatial correlation
Channel estimation
Channel capacity
Trade-off
Q-Index Code E1
Q-Index Status Confirmed Code

 
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Created: Sat, 11 Apr 2009, 01:42:34 EST by Donna Clark on behalf of School of Information Technol and Elec Engineering