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

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

doi:10.1109/CSNDSP.2014.6923856

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

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

Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English (US)
Title of host publication	2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	368-373
Number of pages	6
ISBN (Electronic)	9781479925810
DOIs	https://doi.org/10.1109/CSNDSP.2014.6923856
State	Published - Oct 14 2014
Event	2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014 - Manchester, United Kingdom Duration: Jul 23 2014 → Jul 25 2014

Publication series

Name	2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014

Conference

Conference	2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014
Country/Territory	United Kingdom
City	Manchester
Period	7/23/14 → 7/25/14

Keywords

Free-space optical (FSO) communications
fog attenuation
hard switching
hybrid FSO/RF link

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

Access to Document

10.1109/CSNDSP.2014.6923856

Cite this

Lee, I. E., Ghassemlooy, Z., Ng, W. P., Gourdel, V., Khalighi, M. A., Zvanovec, S., & Uysal, M. (2014). Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment. In 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014 (pp. 368-373). Article 6923856 (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CSNDSP.2014.6923856

Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment. / Lee, I. E.; Ghassemlooy, Z.; Ng, W. P. et al.
2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 368-373 6923856 (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, IE, Ghassemlooy, Z, Ng, WP, Gourdel, V, Khalighi, MA, Zvanovec, S & Uysal, M 2014, Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment. in 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014., 6923856, 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014, Institute of Electrical and Electronics Engineers Inc., pp. 368-373, 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014, Manchester, United Kingdom, 7/23/14. https://doi.org/10.1109/CSNDSP.2014.6923856

Lee IE, Ghassemlooy Z, Ng WP, Gourdel V, Khalighi MA, Zvanovec S et al. Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment. In 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 368-373. 6923856. (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014). doi: 10.1109/CSNDSP.2014.6923856

Lee, I. E. ; Ghassemlooy, Z. ; Ng, W. P. et al. / Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment. 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 368-373 (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014).

@inproceedings{d44b6123ac504579a1cd03850db98e89,

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

abstract = "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.",

keywords = "Free-space optical (FSO) communications, fog attenuation, hard switching, hybrid FSO/RF link",

author = "Lee, {I. E.} and Z. Ghassemlooy and Ng, {W. P.} and V. Gourdel and Khalighi, {M. A.} and S. Zvanovec and M. Uysal",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014 ; Conference date: 23-07-2014 Through 25-07-2014",

year = "2014",

month = oct,

day = "14",

doi = "10.1109/CSNDSP.2014.6923856",

language = "English (US)",

series = "2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "368--373",

booktitle = "2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014",

}

TY - GEN

T1 - Practical implementation and performance study of a hard-switched hybrid FSO/RF link under controlled fog environment

AU - Lee, I. E.

AU - Ghassemlooy, Z.

AU - Ng, W. P.

AU - Gourdel, V.

AU - Khalighi, M. A.

AU - Zvanovec, S.

AU - Uysal, M.

PY - 2014/10/14

Y1 - 2014/10/14

N2 - 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.

AB - 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.

KW - Free-space optical (FSO) communications

KW - fog attenuation

KW - hard switching

KW - hybrid FSO/RF link

UR - http://www.scopus.com/inward/record.url?scp=84910634002&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84910634002&partnerID=8YFLogxK

U2 - 10.1109/CSNDSP.2014.6923856

DO - 10.1109/CSNDSP.2014.6923856

M3 - Conference contribution

AN - SCOPUS:84910634002

T3 - 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014

SP - 368

EP - 373

BT - 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014

Y2 - 23 July 2014 through 25 July 2014

ER -

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

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this