Referenced Items are not available for this document.
In this letter, we study differential modulation for decode-and-forward (DF) based free space optical (FSO) cooperative communication system over Gamma-Gamma fading channels. We derive exact bit error rate (BER) of the differential DF FSO system in terms of power series. The diversity order and coding gain of the differentially modulated DF FSO system are analytically obtained. It is demonstrated by analysis and simulation that the differential DF FSO system is able to achieve significant performance gain over a non-cooperative direct transmission based differential FSO system.
Published in:
Communications Letters, IEEE
(Volume:16
,
Issue:
8
)
Date of Publication: August 2012
- Page(s):
- 1228 - 1231
- ISSN :
- 1089-7798
- Digital Object Identifier :
- 10.1109/LCOMM.2012.052112.120670
- Product Type:
- Journals & Magazines
- Date of Publication :
- 30 May 2012
- Date of Current Version :
- 15 August 2012
- Issue Date :
- August 2012
- Sponsored by :
- IEEE Communications Society
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