Comparison of different combining methods for space-diversity FSO systems

Mojtaba Mansour Abadi; Zabih Ghassemlooy; Dave Smith; Wai Pang Ng; Mohammad-Ali Khalighi; Stanislav Zvanovec

doi:10.1109/CSNDSP.2014.6923979

Comparison of different combining methods for space-diversity FSO systems

Mojtaba Mansour Abadi, Zabih Ghassemlooy, Dave Smith, Wai Pang Ng, Mohammad-Ali Khalighi, Stanislav Zvanovec

Mathematics, Physics and Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

11 Citations (Scopus)

Abstract

This paper gives an overview of different signal combining schemes for free space optical (FSO) communication systems employing spatial diversity (SD) for the case of lognormal weak turbulence atmospheric channels. The receiver configurations are explained and categorized into two domains, namely optical and electrical. Moreover, a new combining scheme in the electrical domain, called “logical” domain combining, is introduced. We present closed-form expressions of bit-error-rate for the combining schemes, considering the typical case of a single-input multiple-output (SIMO) system. Through some numerical analyses, we show that depending on the number of receivers and the turbulence strength, the proposed logical combining method outperforms the other ones.

Original language	English
DOIs	https://doi.org/10.1109/CSNDSP.2014.6923979
Publication status	Published - Jul 2014
Event	9th International Symposium on Communication Systems, Networks and Digital Sign (CSNDSP 2014) - Manchester, UK Duration: 1 Jul 2014 → …

Conference

Conference	9th International Symposium on Communication Systems, Networks and Digital Sign (CSNDSP 2014)
Period	1/07/14 → …

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10.1109/CSNDSP.2014.6923979

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title = "Comparison of different combining methods for space-diversity FSO systems",

abstract = "This paper gives an overview of different signal combining schemes for free space optical (FSO) communication systems employing spatial diversity (SD) for the case of lognormal weak turbulence atmospheric channels. The receiver configurations are explained and categorized into two domains, namely optical and electrical. Moreover, a new combining scheme in the electrical domain, called “logical” domain combining, is introduced. We present closed-form expressions of bit-error-rate for the combining schemes, considering the typical case of a single-input multiple-output (SIMO) system. Through some numerical analyses, we show that depending on the number of receivers and the turbulence strength, the proposed logical combining method outperforms the other ones.",

keywords = "atmospheric turbulence, free space optics (FSO), Optical communication, spatial diversity",

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AU - Mansour Abadi, Mojtaba

AU - Ghassemlooy, Zabih

AU - Smith, Dave

AU - Ng, Wai Pang

AU - Khalighi, Mohammad-Ali

AU - Zvanovec, Stanislav

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N2 - This paper gives an overview of different signal combining schemes for free space optical (FSO) communication systems employing spatial diversity (SD) for the case of lognormal weak turbulence atmospheric channels. The receiver configurations are explained and categorized into two domains, namely optical and electrical. Moreover, a new combining scheme in the electrical domain, called “logical” domain combining, is introduced. We present closed-form expressions of bit-error-rate for the combining schemes, considering the typical case of a single-input multiple-output (SIMO) system. Through some numerical analyses, we show that depending on the number of receivers and the turbulence strength, the proposed logical combining method outperforms the other ones.

AB - This paper gives an overview of different signal combining schemes for free space optical (FSO) communication systems employing spatial diversity (SD) for the case of lognormal weak turbulence atmospheric channels. The receiver configurations are explained and categorized into two domains, namely optical and electrical. Moreover, a new combining scheme in the electrical domain, called “logical” domain combining, is introduced. We present closed-form expressions of bit-error-rate for the combining schemes, considering the typical case of a single-input multiple-output (SIMO) system. Through some numerical analyses, we show that depending on the number of receivers and the turbulence strength, the proposed logical combining method outperforms the other ones.

KW - atmospheric turbulence

KW - free space optics (FSO)

KW - Optical communication

KW - spatial diversity

U2 - 10.1109/CSNDSP.2014.6923979

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M3 - Paper

T2 - 9th International Symposium on Communication Systems, Networks and Digital Sign (CSNDSP 2014)

Y2 - 1 July 2014

ER -

Comparison of different combining methods for space-diversity FSO systems

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