Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment

Name: Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment
Author: Lee, I. E., Ghassemlooy, Z., Ng, W. P., Gourdel, V., Khalighi, M. A., Zvanovec, S., Uysal, Murat

İsim	Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment
Yazar	Lee, I. E., Ghassemlooy, Z., Ng, W. P., Gourdel, V., Khalighi, M. A., Zvanovec, S., Uysal, Murat
Basım Tarihi:	2014
Basım Yeri	- IEEE
Konu	Free-space optical (FSO) communications, Fog attenuation, Hard switching, Hybrid FSO/RF link
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-1-4799-2581-0
Kayıt Numarası	e98fcd1f-f510-4eb2-816c-955e50fe4588
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	The availability and performance of terrestrial free-space optical (FSO) communication systems are heavily deterred by the fluctuating conditions of the atmospheric channel, particularly in the presence of visibility-limiting fog effects. In this paper, we examine the viability of deploying hybrid FSO and radio frequency (RF) links through an experimental study, which takes advantage of a dedicated laboratory atmospheric chamber to emulate the fog scenarios encountered on outdoor environment. In particular, a root mean square power detector is developed and introduced in the system under study to monitor the signal quality of the primary FSO link. The quasi-linear output voltage characteristics of the power detector device is utilized as a useful decision metric to implement hard switching in a hybrid FSO/RF link based upon the changes in the visibility. Our measurement results reveal that the selection of a desirable threshold voltage is dependent upon the intended data rate and minimum achievable bit error rate, in order to enable effective switching between the FSO and RF links.
DOI	10.1109/CSNDSP.2014.6923856

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Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment

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

Basım Tarihi 2014

Basım Yeri - IEEE

Konu Free-space optical (FSO) communications, Fog attenuation, Hard switching, Hybrid FSO/RF link

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-1-4799-2581-0

Kayıt Numarası e98fcd1f-f510-4eb2-816c-955e50fe4588

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 The availability and performance of terrestrial free-space optical (FSO) communication systems are heavily deterred by the fluctuating conditions of the atmospheric channel, particularly in the presence of visibility-limiting fog effects. In this paper, we examine the viability of deploying hybrid FSO and radio frequency (RF) links through an experimental study, which takes advantage of a dedicated laboratory atmospheric chamber to emulate the fog scenarios encountered on outdoor environment. In particular, a root mean square power detector is developed and introduced in the system under study to monitor the signal quality of the primary FSO link. The quasi-linear output voltage characteristics of the power detector device is utilized as a useful decision metric to implement hard switching in a hybrid FSO/RF link based upon the changes in the visibility. Our measurement results reveal that the selection of a desirable threshold voltage is dependent upon the intended data rate and minimum achievable bit error rate, in order to enable effective switching between the FSO and RF links.

DOI 10.1109/CSNDSP.2014.6923856