Effect of Signal and Noise Mutual Coupling on MIMO Channel Capacity

Date

2007

Authors

Krusevac, Snezana
Kennedy, Rodney
Rapajic, Predrag

Journal Title

Journal ISSN

Volume Title

Publisher

Kluwer Academic Publishers

Abstract

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.

Description

Keywords

Keywords: Computer simulation; Correlation methods; Receiving antennas; Signal processing; Signal to noise ratio; Thermal noise; MIMO channel capacity; Multi antenna systems; Mutual coupling; Noise correlation matrix; Channel capacity MIMO channel capacity; Mutual coupling; Thermal noise

Citation

Source

Wireless Personal Communications

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1007/s11277-006-9193-8

Restricted until

2037-12-31