Distributed source coding using chaos-based cryptosystem

被引:1
作者
Zhou, Junwei [1 ]
Wong, Kwok-Wo [1 ]
Chen, Jianyong [2 ]
机构
[1] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
[2] Shenzhen Univ, Dept Comp Applicat Technol, Shenzhen 518060, Peoples R China
关键词
Chaos; Encryption; Distributed source coding; Slepian-Wolf coding; BINARY SOURCES; TIME-SERIES; CODES; COMPRESSION; INFORMATION; SECURE;
D O I
10.1016/j.cnsns.2012.05.021
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
A distributed source coding scheme is proposed by incorporating a chaos-based cryptosystem in the Slepian-Wolf coding. The punctured codeword generated by the chaos-based cryptosystem results in ambiguity at the decoder side. This ambiguity can be removed by the maximum a posteriori decoding with the help of side information. In this way, encryption and source coding are performed simultaneously. This leads to a simple encoder structure with low implementation complexity. Simulation results show that the encoder complexity is lower than that of existing distributed source coding schemes. Moreover, at small block size, the proposed scheme has a performance comparable to existing distributed source coding schemes. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:5110 / 5116
页数:7
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