Capacity analysis of free space optical links for a partially coherent gaussian beam over a turbulent channel with pointing errors

Name: Capacity analysis of free space optical links for a partially coherent gaussian beam over a turbulent channel with pointing errors
Author: Lee, I. E., Ghassemlooy, Z., Ng, W. P., Khalighi, M. A., Uysal, Murat

İsim	Capacity analysis of free space optical links for a partially coherent gaussian beam over a turbulent channel with pointing errors
Yazar	Lee, I. E., Ghassemlooy, Z., Ng, W. P., Khalighi, M. A., Uysal, Murat
Basım Tarihi:	2013
Basım Yeri	- IEEE
Konu	Free-space optical (FSO) communications, Partially coherent beam (PCB), Atmospheric turbulence, Pointing errors, Average channel capacity
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-1-4673-5821-7
Kayıt Numarası	71f5a54f-febf-4398-8c92-e922e10c10d6
Lokasyon	Electrical & Electronics Engineering
Tarih	2013
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 the joint effects of beam width and the spatial coherence length in a partially coherent free-space optical (FSO) link from the information theory perspective, taking into account the combined influence of atmospheric turbulence and pointing errors. In addition, the effects of aperture-averaging on the average capacity of FSO links employing partially coherent beams (PCBs) are examined. Results show that PCBs are desirable in the weak-to-moderate turbulence regime, whereas highly coherent laser sources are preferred under strong fluctuations conditions; and there exist optimality in the optical beam parameters for different atmospheric channel conditions. Near-optimal average capacity is best achieved through the introduction of a larger receiver aperture and the joint beam width and spatial coherence length optimization technique, which effectively mitigates the effects of scintillation and pointing errors.
DOI	10.1109/NOC-OCI.2013.6582900

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Capacity analysis of free space optical links for a partially coherent gaussian beam over a turbulent channel with pointing errors

Yazar Lee, I. E., Ghassemlooy, Z., Ng, W. P., Khalighi, M. A., Uysal, Murat

Basım Tarihi 2013

Basım Yeri - IEEE

Konu Free-space optical (FSO) communications, Partially coherent beam (PCB), Atmospheric turbulence, Pointing errors, Average channel capacity

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-1-4673-5821-7

Kayıt Numarası 71f5a54f-febf-4398-8c92-e922e10c10d6

Lokasyon Electrical & Electronics Engineering

Tarih 2013

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 the joint effects of beam width and the spatial coherence length in a partially coherent free-space optical (FSO) link from the information theory perspective, taking into account the combined influence of atmospheric turbulence and pointing errors. In addition, the effects of aperture-averaging on the average capacity of FSO links employing partially coherent beams (PCBs) are examined. Results show that PCBs are desirable in the weak-to-moderate turbulence regime, whereas highly coherent laser sources are preferred under strong fluctuations conditions; and there exist optimality in the optical beam parameters for different atmospheric channel conditions. Near-optimal average capacity is best achieved through the introduction of a larger receiver aperture and the joint beam width and spatial coherence length optimization technique, which effectively mitigates the effects of scintillation and pointing errors.

DOI 10.1109/NOC-OCI.2013.6582900