Compressed Coding, AMP-Based Decoding, and Analog Spatial Coupling

doi:10.1109/TCOMM.2020.3024871

CSpace

	Compressed Coding, AMP-Based Decoding, and Analog Spatial Coupling
	Liang, Shansuo 1,2; Liang, Chulong 1,3,4; Ma, Junjie 5; Ping, Li 1
	2020-12-01
发表期刊	IEEE TRANSACTIONS ON COMMUNICATIONS
ISSN	0090-6778
卷号	68 期号:12 页码:7362-7375
摘要	This paper considers a compressed-coding scheme that combines compressed sensing with forward error control coding. Approximate message passing (AMP) is used to decode the message. Based on the state evolution analysis of AMP, we derive the performance limit of compressed-coding. We show that compressed-coding can approach Gaussian capacity at a very low compression ratio. Further, the results are extended to systems involving non-linear effects such as clipping. We show that the capacity approaching property can still be maintained when generalized AMP is used to decode the message. To approach the capacity, a low-rate underlying code should be designed according to the curve matching principle, which is complicated in practice. Instead, analog spatial-coupling is used to avoid sophisticated low-rate code design. In the end, we study the coupled scheme in a multiuser environment, where analog spatial-coupling can be realized in a distributive way. The overall block length can be shared by many users, which reduces block length per-user.
关键词	Decoding Error correction Encoding Error correction codes Signal to noise ratio Modulation Compressed sensing Compressed sensing forward error control coding approximate message passing state evolution area theorem and analog spatial-coupling
DOI	10.1109/TCOMM.2020.3024871
收录类别	SCI
语种	英语
资助项目	University Grants Committee of the Hong Kong SAR, China[CityU 11216817] ; University Grants Committee of the Hong Kong SAR, China[CityU 11216518] ; University Grants Committee of the Hong Kong SAR, China[CityU 11209519]
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000599497700006
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/57853
专题	中国科学院数学与系统科学研究院
通讯作者	Liang, Shansuo
作者单位	1.City Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China 2.Huawei Hong Kong Res Ctr, Hong Kong, Peoples R China 3.Algorithm Dept, ZTE Corp, Shenzhen 518057, Peoples R China 4.ZTE Corp, State Key Lab Mobile Network & Mobile Multimedia, Shenzhen 518057, Peoples R China 5.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liang, Shansuo,Liang, Chulong,Ma, Junjie,et al. Compressed Coding, AMP-Based Decoding, and Analog Spatial Coupling[J]. IEEE TRANSACTIONS ON COMMUNICATIONS,2020,68(12):7362-7375.
APA	Liang, Shansuo,Liang, Chulong,Ma, Junjie,&Ping, Li.(2020).Compressed Coding, AMP-Based Decoding, and Analog Spatial Coupling.IEEE TRANSACTIONS ON COMMUNICATIONS,68(12),7362-7375.
MLA	Liang, Shansuo,et al."Compressed Coding, AMP-Based Decoding, and Analog Spatial Coupling".IEEE TRANSACTIONS ON COMMUNICATIONS 68.12(2020):7362-7375.