Multi-hop coherent free-space optical communications over atmospheric turbulence channels

Name: Multi-hop coherent free-space optical communications over atmospheric turbulence channels
Author: Aghajanzadeh, S. M., Uysal, Murat

İsim	Multi-hop coherent free-space optical communications over atmospheric turbulence channels
Yazar	Aghajanzadeh, S. M., Uysal, Murat
Basım Tarihi:	2011
Basım Yeri	- IEEE
Konu	Free-space optical systems, Multi-hop transmission, Finite-SNR diversity-multiplexing tradeoff, Atmospheric turbulence-induced fading
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0090-6778
Kayıt Numarası	dadd15d7-9ba2-4183-b701-4d6dce3ff8da
Lokasyon	Electrical & Electronics Engineering
Tarih	2011
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	In this paper, we investigate multi-hop relaying as an efficient fading mitigation tool for coherent free-space optical (FSO) systems over atmospheric turbulence channels. We consider an FSO relaying system with decode-and-forward relay nodes and multiple heterodyne receivers with modal compensation. Based on a recently introduced statistical characterization for the combined effects of log-normal turbulence fading and modal compensation, we derive the outage probability and quantify the potential performance improvements through the derivation of diversity multiplexing tradeoff (DMT) and diversity gain. Our outage analysis yields impressive power savings for multi-hop relaying even with a single-relay. In addition, the DMT analysis in practical signal-to-noise ratio (SNR) ranges demonstrates that multi-hop transmission scheme improves finite-SNR diversity gain throughout the range of the multiplexing gain.
DOI	10.1109/TCOMM.2011.050911.100069
Cilt	59

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Multi-hop coherent free-space optical communications over atmospheric turbulence channels

Yazar Aghajanzadeh, S. M., Uysal, Murat

Basım Tarihi 2011

Basım Yeri - IEEE

Konu Free-space optical systems, Multi-hop transmission, Finite-SNR diversity-multiplexing tradeoff, Atmospheric turbulence-induced fading

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0090-6778

Kayıt Numarası dadd15d7-9ba2-4183-b701-4d6dce3ff8da

Lokasyon Electrical & Electronics Engineering

Tarih 2011

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

Örnek Metin In this paper, we investigate multi-hop relaying as an efficient fading mitigation tool for coherent free-space optical (FSO) systems over atmospheric turbulence channels. We consider an FSO relaying system with decode-and-forward relay nodes and multiple heterodyne receivers with modal compensation. Based on a recently introduced statistical characterization for the combined effects of log-normal turbulence fading and modal compensation, we derive the outage probability and quantify the potential performance improvements through the derivation of diversity multiplexing tradeoff (DMT) and diversity gain. Our outage analysis yields impressive power savings for multi-hop relaying even with a single-relay. In addition, the DMT analysis in practical signal-to-noise ratio (SNR) ranges demonstrates that multi-hop transmission scheme improves finite-SNR diversity gain throughout the range of the multiplexing gain.

DOI 10.1109/TCOMM.2011.050911.100069

Cilt 59