NDLI: Dual-Hop Optical Wireless Relaying Over Turbulence Channels With Pointing Error Impairments

Content Provider	IEEE Xplore Digital Library
Author	Aggarwal, M. Garg, P. Puri, P.
Copyright Year	1983
Abstract	In this paper, we present analytical expressions for the performance of dual-hop urban optical wireless communication system under the combined influence of atmospheric turbulence induced-fading and misalignment-fading (pointing errors). The system employs an amplify and forward relay with the assumption that channel state information is available at transmitting as well as receiving terminals. The atmospheric turbulence channels are modeled by independent but not necessarily identically distributed (i.n.i.d) Gamma-Gamma fading statistics with pointing error impairments. Using a tight upper bound for the end-to-end signal to noise ratio of the system, we derive the novel closed form expressions for the moment generating function and probability density function all in terms of Meijer's G-function. Based on the aforementioned statistical results, accurate closed-form expressions for average symbol error rate for M-ary phase shift keying modulation schemes, outage probability and the ergodic capacity under four adaptive transmission policies namely optimal rate adaptation, optimal power and rate adaptation, channel inversion with fixed rate and truncated channel inversion with fixed rate are derived in terms of Meijer's G -function function. Finally, the proposed mathematical analysis is accompanied with various numerical examples to demonstrate the effect of different system parameters on the system performance.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1821
Ending Page	1828
Page Count	8
File Size	1017836
File Format	PDF
ISSN	07338724
Volume Number	32
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal to noise ratio Closed-form solutions Fading Bit error rate Relays Phase shift keying urban optical wireless communication (UOWC) system Average symbol error rate ergodic capacity Meijer’s G-function pointing errors
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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