A Novel Concatenated Coding Scheme Combined LDPC and VBLAST for FSO Links

	A Novel Concatenated Coding Scheme Combined LDPC and VBLAST for FSO Links
	Wang, Huiqin; Wang, Fen; Cao, Minghua
	2015
关键词	Free-space Optical concatenated coding scheme Low Density Parity Check vertical Bell Labs layered space-time
页码	192-195
英文摘要	We propose a novel concatenated coding scheme combined Low Density Parity Check(LDPC) code and vertical Bell Labs layered space-time (VBLAST) code to improve the bit error rate (BER) performance for Free-space optical (FSO) communication links with On Off Keying(OOK) modulation. In the scheme, pi-rotation encoding and belief-propagation (BP) decoding algorithm are employed in LDPC code, and minimum mean-square error (MMSE) soft-decision decoding algorithm is used for VBLAST code. Moreover, a joint iterative detection and decoding algorithm of VBLAST code and LDPC code is used to improve the overall link performance. At last, the BER of the proposed scheme over lognormal atmospheric turbulent fading channels is analyzed by using Monte Carlo method. The result shows that the BER of the proposed concatenated coding scheme is much improved than that only use VBLAST code scheme.
会议录	PROCEEDINGS OF 2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION SOFTWARE AND NETWORKS (ICCSN)
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
WOS研究方向	Computer Science
WOS记录号	WOS:000380465000037
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36473]
专题	计算机与通信学院
通讯作者	Wang, Huiqin
作者单位	Lanzhou Univ Technol, Dept Commun & Informat Syst, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Wang, Huiqin,Wang, Fen,Cao, Minghua. A Novel Concatenated Coding Scheme Combined LDPC and VBLAST for FSO Links[C]. 见:.