An adaptive modulation scheme for coded free-space optical systems

Name: An adaptive modulation scheme for coded free-space optical systems
Author: Hariq, S. H., Odabasioglu, N., Uysal, Murat

İsim	An adaptive modulation scheme for coded free-space optical systems
Yazar	Hariq, S. H., Odabasioglu, N., Uysal, Murat
Basım Tarihi:	2014
Basım Yeri	- IEEE
Konu	Free-space optical communications, Adaptive transmission, Turbo codes, Lognormal fading channel
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2-s2.0-84921390349
Kayıt Numarası	f67d928e-0c25-42e0-9f26-b1959470f272
Lokasyon	Electrical & Electronics Engineering
Tarih	2014
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	For very slowly-varying fading channels as in the case of atmospheric turbulence-induced fading, it is possible to reliably estimate the channel state information and send it back to the transmitter. The transmitter can use this information to vary the transmission parameters such as power, modulation size, code rate etc according to the channel conditions. This is known as link adaptation. In this paper, we consider a turbo-coded free-space optical (FSO) system with M-ary pulse position modulation over log-normal turbulence channels and propose an adaptive modulation scheme under peak power constraints. Our simulation results demonstrate significant performance improvements of the proposed adaptive scheme over non-adaptive counterparts.
DOI	10.1109/NOC.2014.6996841

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An adaptive modulation scheme for coded free-space optical systems

Yazar Hariq, S. H., Odabasioglu, N., Uysal, Murat

Basım Tarihi 2014

Basım Yeri - IEEE

Konu Free-space optical communications, Adaptive transmission, Turbo codes, Lognormal fading channel

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2-s2.0-84921390349

Kayıt Numarası f67d928e-0c25-42e0-9f26-b1959470f272

Lokasyon Electrical & Electronics Engineering

Tarih 2014

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

Örnek Metin For very slowly-varying fading channels as in the case of atmospheric turbulence-induced fading, it is possible to reliably estimate the channel state information and send it back to the transmitter. The transmitter can use this information to vary the transmission parameters such as power, modulation size, code rate etc according to the channel conditions. This is known as link adaptation. In this paper, we consider a turbo-coded free-space optical (FSO) system with M-ary pulse position modulation over log-normal turbulence channels and propose an adaptive modulation scheme under peak power constraints. Our simulation results demonstrate significant performance improvements of the proposed adaptive scheme over non-adaptive counterparts.

DOI 10.1109/NOC.2014.6996841