Fiber optics and optical communication improved maximum likelihood detection for mitigating fading estimation error in free space optical communication

	Fiber optics and optical communication improved maximum likelihood detection for mitigating fading estimation error in free space optical communication
	Zhang L.; Wu Z.; Zhang Y.; Detian H.
	2013
发表期刊	Optical Engineering
ISSN	ISBN/00913286
期号	52
摘要	To mitigate the impact of the error between the estimated channel fading coefficient and the perfect fading coefficient on the bit error rate (BER), a priori conditional probability density function averaging the estimation error is proposed. Then, an improved maximum-likelihood (ML) symbol-by-symbol detection is derived for the free-space optical communication systems, which implement pilot symbol assisted modulation. To reduce complexity, a closed-form suboptimal improved ML detection is deduced using distribution approximation. Numerical results confirm that BER performance improvement can be reached by the improved ML detection, and that its suboptimal version performs as well as it does. Therefore, they both outperform classical ML detection, which doses not consider channel estimation error. 2013 Society of Photo-Optical Instrumentation Engineers (SPIE).
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/40667
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang L.,Wu Z.,Zhang Y.,et al. Fiber optics and optical communication improved maximum likelihood detection for mitigating fading estimation error in free space optical communication[J]. Optical Engineering,2013(52).
APA	Zhang L.,Wu Z.,Zhang Y.,&Detian H..(2013).Fiber optics and optical communication improved maximum likelihood detection for mitigating fading estimation error in free space optical communication.Optical Engineering(52).
MLA	Zhang L.,et al."Fiber optics and optical communication improved maximum likelihood detection for mitigating fading estimation error in free space optical communication".Optical Engineering .52(2013).

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