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Compressed Coding, AMP-Based Decoding, and Analog Spatial Coupling
Liang, Shansuo1,2; Liang, Chulong1,3,4; Ma, Junjie5; Ping, Li1
2020-12-01
Source PublicationIEEE TRANSACTIONS ON COMMUNICATIONS
ISSN0090-6778
Volume68Issue:12Pages:7362-7375
AbstractThis 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.
KeywordDecoding 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
DOI10.1109/TCOMM.2020.3024871
Indexed BySCI
Language英语
Funding ProjectUniversity 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 Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000599497700006
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/57853
Collection中国科学院数学与系统科学研究院
Corresponding AuthorLiang, Shansuo
Affiliation1.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
Recommended Citation
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.
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