Information theoretic analysis of hybrid-ARQ protocols in coherent free-space optical systems

Name: Information theoretic analysis of hybrid-ARQ protocols in coherent free-space optical systems
Author: Aghajanzadeh, S. M., Uysal, Murat

İsim	Information theoretic analysis of hybrid-ARQ protocols in coherent free-space optical systems
Yazar	Aghajanzadeh, S. M., Uysal, Murat
Basım Tarihi:	2012-05
Basım Yeri	- IEEE
Konu	Free-space optical communications, Automatic retransmission request, Turbulence-induced fading, Outage probability, Throughput
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0090-6778
Kayıt Numarası	008cc915-9d0d-4ef7-b56a-0fb70bc677ce
Lokasyon	Electrical & Electronics Engineering
Tarih	2012-05
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	Automatic retransmission request (ARQ) is a feedback-based data link layer technique which enhances the reliability of communication in fading channels. In this paper, we investigate the performance of hybrid-ARQ (H-ARQ) techniques in coherent free-space optical (FSO) communication systems over atmospheric turbulence-induced fading channels. Under the assumption of a Gamma-Gamma statistical fading channel model, we derive outage probability and throughput expressions for three H-ARQ protocols. We further characterize the outage performance at high values of signal-to-noise-ratio (SNR) through diversity and coding gains. Our results provide insight into the performance mechanisms of different H-ARQ protocols in coherent FSO systems and demonstrate that significant performance gains can be achieved through the deployment of H-ARQ particularly in the strong turbulence regime.
DOI	10.1109/TCOMM.2012.030712.110409
Cilt	60

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Information theoretic analysis of hybrid-ARQ protocols in coherent free-space optical systems

Yazar Aghajanzadeh, S. M., Uysal, Murat

Basım Tarihi 2012-05

Basım Yeri - IEEE

Konu Free-space optical communications, Automatic retransmission request, Turbulence-induced fading, Outage probability, Throughput

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0090-6778

Kayıt Numarası 008cc915-9d0d-4ef7-b56a-0fb70bc677ce

Lokasyon Electrical & Electronics Engineering

Tarih 2012-05

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin Automatic retransmission request (ARQ) is a feedback-based data link layer technique which enhances the reliability of communication in fading channels. In this paper, we investigate the performance of hybrid-ARQ (H-ARQ) techniques in coherent free-space optical (FSO) communication systems over atmospheric turbulence-induced fading channels. Under the assumption of a Gamma-Gamma statistical fading channel model, we derive outage probability and throughput expressions for three H-ARQ protocols. We further characterize the outage performance at high values of signal-to-noise-ratio (SNR) through diversity and coding gains. Our results provide insight into the performance mechanisms of different H-ARQ protocols in coherent FSO systems and demonstrate that significant performance gains can be achieved through the deployment of H-ARQ particularly in the strong turbulence regime.

DOI 10.1109/TCOMM.2012.030712.110409

Cilt 60