Research Article
On the Approximation of MIMO Shannon Capacity Over Spatially Correlated Ricean Fading Channels
@INPROCEEDINGS{10.1109/CHINACOM.2006.344879, author={Dian-wu Yue and Guang-jian Wang}, title={On the Approximation of MIMO Shannon Capacity Over Spatially Correlated Ricean Fading Channels}, proceedings={1st International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2007}, month={4}, keywords={}, doi={10.1109/CHINACOM.2006.344879} }- Dian-wu Yue
Guang-jian Wang
Year: 2007
On the Approximation of MIMO Shannon Capacity Over Spatially Correlated Ricean Fading Channels
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2006.344879
Abstract
Due to mathematical intractability, there have been only few analytical results on Ricean capacity with multiple antennas, especially for fading channels with spatial correlation. Based on a result from multivariate statistical theory, this paper shows that the statistically performance analysis for single-sided spatially correlated multiple-input multiple output (MIMO) Ricean fading channels can be replaced approximately by the corresponding analysis for single-sided correlated MIMO Rayleigh channels. In particular, an approximation closed-form expression for the Shannon capacity of single-sided correlated Ricean MIMO channels is given. It is shown by simulation that the approximation to the MIMO Shannon capacity is very accurate even for a small number of antenna elements, various correlation conditions, a wide range of Ricean K-factors, and low to high transmitting signal-to-noise ratio values. Based on the simulation results, it is guessed that the approximation is a lower bound on the MIMO Shannon capacity.