On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
Information Capacity of the Space Division Multiple Access Mobile Communication System
Wireless Personal Communications: An International Journal
Mutual coupling in MIMO wireless systems: a rigorous network theory analysis
IEEE Transactions on Wireless Communications
Dynamics of spatial correlation and implications on MIMO systems
IEEE Communications Magazine
Noise correlation in compact diversity receivers
IEEE Transactions on Communications
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In this paper we analyze the impact of mutual coupling on MIMO channel capacity, considering its effect on both signal and thermal noise. We calculate noise correlation matrix in the multi-antenna system with closely spaced antenna by applying Nyquist's thermal noise theorem. Then, we employ the noise correlation matrix in the channel capacity formula, which enables the identification of thermal noise correlation contribution on the MIMO channel capacity. In addition, we examine the variations in the mean branch signal-to-noise ratios (SNR) due to the noise correlation. Our simulation results corroborate the theoretical analysis that mean and outage MIMO channel capacity is underestimated if noise correlation due to mutual coupling effect is not accounted for.