Combining Reception with Multiple Receive Antennas for Space Time Coded MPSK over Correlated Rayleigh Fading Channels

Pingyi FAN

IEICE TRANSACTIONS on Communications   Vol.E85-B    No.5    pp.895-901
Publication Date: 2002/05/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Wireless Communications Issue)
maximum ratio combining reception,  transmit diversity,  space-time coding,  correlated fading,  

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This paper considers combining receptions with multiple receive antennas for space time coded MPSK signals over correlated Rayleigh fading channels. For the system with dual-antenna at receiver, a new transform is proposed, which can convert the correlated fading signals into uncorrelated ones. With the results obtained by using the proposed transform, the equivalent selective combining (SC) reception and maximum likelihood (ML) reception are presented. Theoretical analysis shows that ML reception has better performance than SC reception in terms of bit error rate. For the system with triple antenna at receiver, the simulation results are presented by using Monte Carlo method. All the results show that compared to using a receive antenna, a considerable signal to noise ratio gain can be obtained by using multiple receive antennas when the correlation coefficients among the receive antennas is not too high.