Generalized maximum-likelihood sequence detection for photon-counting free space optical systems

Name: Generalized maximum-likelihood sequence detection for photon-counting free space optical systems
Author: Chatzidiamantis, N. D., Karagiannidis, G. K., Uysal, Murat

İsim	Generalized maximum-likelihood sequence detection for photon-counting free space optical systems
Yazar	Chatzidiamantis, N. D., Karagiannidis, G. K., Uysal, Murat
Basım Tarihi:	2010-12
Basım Yeri	- IEEE
Konu	Free-space optical systems, Turbulence-induced fading, Poisson photon counting model, Maximum likelihood sequence detection, Generalized maximum likelihood sequence detection
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0090-6778
Kayıt Numarası	da09a1df-534e-441f-8875-ed4aed4027a4
Lokasyon	Electrical & Electronics Engineering
Tarih	2010-12
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	We investigate detection methods for on-off keying (OOK) photon-counting Free Space Optical (FSO) systems in the presence of turbulence-induced fading, assuming no channel state information at the receiver. To recover the performance loss which is associated with symbol-by-symbol detection in such a scenario, we consider sequence detection techniques, exploiting the temporal correlation of the FSO channel. Due to its high complexity in the calculation of its metric, optimal maximum likelihood sequence detection (MLSD) is infeasible for most practical purposes. Hence, we propose a suboptimal low-complexity detection rule, which is based on the generalized maximum-likelihood sequence estimation. The proposed scheme allows the detection of sequence lengths that are prohibitive for conventional MLSD, without using any kind of channel knowledge. Monte Carlo simulation results show its performance to be very close to the optimum for large sequence lengths and various fading models.
DOI	10.1109/TCOMM.2010.093010.090116A
Cilt	58

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Generalized maximum-likelihood sequence detection for photon-counting free space optical systems

Yazar Chatzidiamantis, N. D., Karagiannidis, G. K., Uysal, Murat

Basım Tarihi 2010-12

Basım Yeri - IEEE

Konu Free-space optical systems, Turbulence-induced fading, Poisson photon counting model, Maximum likelihood sequence detection, Generalized maximum likelihood sequence detection

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0090-6778

Kayıt Numarası da09a1df-534e-441f-8875-ed4aed4027a4

Lokasyon Electrical & Electronics Engineering

Tarih 2010-12

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

Örnek Metin We investigate detection methods for on-off keying (OOK) photon-counting Free Space Optical (FSO) systems in the presence of turbulence-induced fading, assuming no channel state information at the receiver. To recover the performance loss which is associated with symbol-by-symbol detection in such a scenario, we consider sequence detection techniques, exploiting the temporal correlation of the FSO channel. Due to its high complexity in the calculation of its metric, optimal maximum likelihood sequence detection (MLSD) is infeasible for most practical purposes. Hence, we propose a suboptimal low-complexity detection rule, which is based on the generalized maximum-likelihood sequence estimation. The proposed scheme allows the detection of sequence lengths that are prohibitive for conventional MLSD, without using any kind of channel knowledge. Monte Carlo simulation results show its performance to be very close to the optimum for large sequence lengths and various fading models.

DOI 10.1109/TCOMM.2010.093010.090116A

Cilt 58