Effect of noise imbalance on dual-MRC over rayleigh fading channels

Young Chai Ko; Tao Luo

doi:10.1109/TWC.2006.1603965

Effect of noise imbalance on dual-MRC over rayleigh fading channels

Young Chai Ko, Tao Luo

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

4 Citations (Scopus)

Abstract

The performance analysis of dual (two-branch) maximal ratio combining (MRC) under imperfect weight, named imperfect MRC, due to the noise imbalance is derived over independent but non-identical Rayleigh fading channels. Considering the system (or channel) conditions that the noise level of each branch is different, we present the accurate performance analysis of imperfect dual MRC in terms of average combined signal-to-noise ratio (SNR), outage probability and average symbol error rate for a large class of modulations in closed-form and compare them with the performance of the perfect MRC and the perfect selection combining (SC) over non-identical but independent Rayleigh fading channels based on the interesting statistical results on the combined SNR. From the performance results we provide the criterion in choosing the imperfect MRC, perfect MRC, or SC depending on the degree of the difference of the noise level between branches.

Original language	English
Pages (from-to)	514-518
Number of pages	5
Journal	IEEE Transactions on Wireless Communications
Volume	5
Issue number	2
DOIs	https://doi.org/10.1109/TWC.2006.1603965
Publication status	Published - 2006 Mar

Keywords

Channel estimation
Maximal ratio combining
Rayleigh fading channels
Selection combining

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/TWC.2006.1603965

Cite this

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title = "Effect of noise imbalance on dual-MRC over rayleigh fading channels",

abstract = "The performance analysis of dual (two-branch) maximal ratio combining (MRC) under imperfect weight, named imperfect MRC, due to the noise imbalance is derived over independent but non-identical Rayleigh fading channels. Considering the system (or channel) conditions that the noise level of each branch is different, we present the accurate performance analysis of imperfect dual MRC in terms of average combined signal-to-noise ratio (SNR), outage probability and average symbol error rate for a large class of modulations in closed-form and compare them with the performance of the perfect MRC and the perfect selection combining (SC) over non-identical but independent Rayleigh fading channels based on the interesting statistical results on the combined SNR. From the performance results we provide the criterion in choosing the imperfect MRC, perfect MRC, or SC depending on the degree of the difference of the noise level between branches.",

keywords = "Channel estimation, Maximal ratio combining, Rayleigh fading channels, Selection combining",

author = "Ko, {Young Chai} and Tao Luo",

note = "Funding Information: Manuscript received April 24, 2004; revised December 12, 2004, May 20, 2005, and May 25, 2005; accepted June 29, 2005. The associate editor coordinating the review of this letter and approving it for publication was L. Vandendorpe. This research was supported by the Ministry of Information and Communication (MIC), Korea under the Information Technology Research Center (ITRC) support program supervised by the Institute of Information Technology Assessment (IITA).",

year = "2006",

month = mar,

doi = "10.1109/TWC.2006.1603965",

language = "English",

volume = "5",

pages = "514--518",

journal = "IEEE Transactions on Wireless Communications",

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AU - Ko, Young Chai

AU - Luo, Tao

N1 - Funding Information: Manuscript received April 24, 2004; revised December 12, 2004, May 20, 2005, and May 25, 2005; accepted June 29, 2005. The associate editor coordinating the review of this letter and approving it for publication was L. Vandendorpe. This research was supported by the Ministry of Information and Communication (MIC), Korea under the Information Technology Research Center (ITRC) support program supervised by the Institute of Information Technology Assessment (IITA).

PY - 2006/3

Y1 - 2006/3

N2 - The performance analysis of dual (two-branch) maximal ratio combining (MRC) under imperfect weight, named imperfect MRC, due to the noise imbalance is derived over independent but non-identical Rayleigh fading channels. Considering the system (or channel) conditions that the noise level of each branch is different, we present the accurate performance analysis of imperfect dual MRC in terms of average combined signal-to-noise ratio (SNR), outage probability and average symbol error rate for a large class of modulations in closed-form and compare them with the performance of the perfect MRC and the perfect selection combining (SC) over non-identical but independent Rayleigh fading channels based on the interesting statistical results on the combined SNR. From the performance results we provide the criterion in choosing the imperfect MRC, perfect MRC, or SC depending on the degree of the difference of the noise level between branches.

AB - The performance analysis of dual (two-branch) maximal ratio combining (MRC) under imperfect weight, named imperfect MRC, due to the noise imbalance is derived over independent but non-identical Rayleigh fading channels. Considering the system (or channel) conditions that the noise level of each branch is different, we present the accurate performance analysis of imperfect dual MRC in terms of average combined signal-to-noise ratio (SNR), outage probability and average symbol error rate for a large class of modulations in closed-form and compare them with the performance of the perfect MRC and the perfect selection combining (SC) over non-identical but independent Rayleigh fading channels based on the interesting statistical results on the combined SNR. From the performance results we provide the criterion in choosing the imperfect MRC, perfect MRC, or SC depending on the degree of the difference of the noise level between branches.

KW - Channel estimation

KW - Maximal ratio combining

KW - Rayleigh fading channels

KW - Selection combining

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DO - 10.1109/TWC.2006.1603965

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JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

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ER -

Effect of noise imbalance on dual-MRC over rayleigh fading channels

Abstract

Keywords

ASJC Scopus subject areas

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