Effect of signal and noise mutual coupling on MIMO channel capacity

Snezana M. Krusevac; Rodney A. Kennedy; Predrag B. Rapajic

doi:10.1007/s11277-006-9193-8

Effect of signal and noise mutual coupling on MIMO channel capacity

Snezana M. Krusevac^*, Rodney A. Kennedy, Predrag B. Rapajic

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

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.

Original language	English
Pages (from-to)	317-328
Number of pages	12
Journal	Wireless Personal Communications
Volume	40
Issue number	3
DOIs	https://doi.org/10.1007/s11277-006-9193-8
Publication status	Published - Feb 2007

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title = "Effect of signal and noise mutual coupling on MIMO channel capacity",

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.",

keywords = "MIMO channel capacity, Mutual coupling, Thermal noise",

author = "Krusevac, {Snezana M.} and Kennedy, {Rodney A.} and Rapajic, {Predrag B.}",

year = "2007",

month = feb,

doi = "10.1007/s11277-006-9193-8",

language = "English",

volume = "40",

pages = "317--328",

journal = "Wireless Personal Communications",

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T1 - Effect of signal and noise mutual coupling on MIMO channel capacity

AU - Krusevac, Snezana M.

AU - Kennedy, Rodney A.

AU - Rapajic, Predrag B.

PY - 2007/2

Y1 - 2007/2

N2 - 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.

AB - 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.

KW - MIMO channel capacity

KW - Mutual coupling

KW - Thermal noise

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U2 - 10.1007/s11277-006-9193-8

DO - 10.1007/s11277-006-9193-8

M3 - Article

SN - 0929-6212

VL - 40

SP - 317

EP - 328

JO - Wireless Personal Communications

JF - Wireless Personal Communications

IS - 3

ER -

Effect of signal and noise mutual coupling on MIMO channel capacity

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