Cooperative Diversity for Free-Space Optical Communications: Transceiver Design and Performance Analysis

Abou-Rjeily, Chadi; Slim, Ahmad

doi:10.1109/tcomm.2011.121410.100032

Cited by 98 publications

(54 citation statements)

References 10 publications

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“…Bayaki et al studied MIMO IM/DD FSO links over the Gamma-Gamma turbulence and demonstrated a significant performance improvement by exploiting both transmitter and receiver diversity [41]. In a recent work, Abou-Rjeily and Slim studied the system performance for Q-ary PPM FSO systems with cooperative diversity (parallel multi-hop) over both Rayleigh and log-normal turbulence channels [42].…”

Section: Literature Reviewmentioning

confidence: 99%

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Terrestrial Coherent Free-Space Optical Communication Systems

Niu¹,

Cheng²,

Holzman³

2012

Optical Communication

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Section: Literature Reviewmentioning

confidence: 99%

“…We will use (42) in the error performance study of multichannel coherent FSO systems. Here we will only mention the BER expressions for the most commonly used BPSK modulation.…”

Section: System Performance Analysis Of Multichannel Coherent Free-spmentioning

confidence: 99%

Terrestrial Coherent Free-Space Optical Communication Systems

Niu¹,

Cheng²,

Holzman³

2012

Optical Communication

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“…In a nutshell, those contributions address either the transmission capacity limits or the practical schemes that are capable of approaching those limits. Recently, a range of advanced transmission protocols have also been investigated, including the protocols designed for relay channels [13], [14], [15], [16], [17]. The channels' correlation and optimal linear receivers designed for single-input multi-output channels have been studied in [18] and [19], [20], respectively.…”

Section: Introductionsmentioning

confidence: 99%

Optical Wireless Scattering Channel Estimation for Photon-Counting and Photomultiplier Tube Receivers

Gong

Zhang

et al. 2016

IEEE Trans. Commun.

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Channel estimation is conceived for optical wireless scattering channels associated with Laser Diode transmitters and photon-counting/photomultiplier tube receivers. The proposed channel estimation approach consists of two stages, namely of the estimation of the channel tap second-order moments followed by the estimation of the channel taps based on the estimate of second-order moments. In the first stage, we provide the general framework of the moment estimation complemented by the conception of an estimation approach based on a sparse pilot structure, as well as by the analysis of the estimation error. We also propose the sparse pilot design and the associated low-complexity channel estimation, and prove the optimality of the proposed channel estimation. In the second stage, we conceive the channel tap estimation based on the eigenvalue decomposition of the matrix of estimated second-order moments, and analyze the associated performance. It is shown that as the length of the pilot sequence tends to infinity, the probability of having an estimation distortion above a threshold can be arbitrarily small. Simulation results show that the proposed sparse pilot sequence can lead to a smaller estimation error than the pilot design using random 0-1 bits.

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“…In [8], relay-assisted transmission is shown to be an effective tool to mitigate fading for FSO systems operating in atmospheric turbulence channels. A one-relay cooperative diversity scheme is proposed and analyzed for noncoherent FSO communications with intensity modulation and direct detection (IM/DD) in [9]. A novel adaptive cooperative protocol with multiple relays over atmospheric turbulence channels with pointing errors is given in [10].…”

Section: Introductionmentioning

confidence: 99%

Asymptotic Performance Analysis of Free-Space Optical Links with Transmit Diversity

Feng¹,

Zhao²

2016

Journal of the Optical Society of Korea

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The misalignment errors and fluctuations in irradiance due to atmospheric turbulence can severely degrade the performance of free-space optical (FSO) systems. In this paper, we investigate the asymptotic bit error rate (BER) performance and diversity orders of FSO links using parallel transmit-diversity schemes. The BER expressions of FSO links with the switch-and-examine transmit (SET), switch-and-examine transmit with post-selection (SETps), dual-branch transmit laser selection (Dual-TLS), and group transmit laser selection (Group-TLS) schemes are derived, based on an approximate channel model. Then numerical simulations for these four schemes in the region of high average signal-to-noise ratio (SNR) are presented under different channel conditions. The results show that the four transmit-diversity schemes can reduce system complexity and overcome the limitation of peak power, without much BER deterioration.

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Cooperative Diversity for Free-Space Optical Communications: Transceiver Design and Performance Analysis

Cited by 98 publications

References 10 publications

Terrestrial Coherent Free-Space Optical Communication Systems

Terrestrial Coherent Free-Space Optical Communication Systems

Optical Wireless Scattering Channel Estimation for Photon-Counting and Photomultiplier Tube Receivers

Asymptotic Performance Analysis of Free-Space Optical Links with Transmit Diversity

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