通信学报Issue(10)：17-27,11.DOI:10.3969/j.issn.1000-436x.2013.10.003
基于分离信源信道码的相关信源在有噪广播信道下的可靠和安全传输
Secure lossless transmission of correlated sources over noisy broadcast channel using separate source-channel coding
摘要
Abstract
The problem of secure transmission of correlated sources over broadcast channel was studied from the pers-pective of information-theoretic security. Each source is only for its intended receiver, but to be kept secret from the un-intended receiver. Sufficient condition was provided for secure transmission of correlated sources over broadcast channels from separate source-channel coding perspective. If the mutual information was chosen as common information, optimal compression and partial perfect secrecy were both achieved for two correlated sources. Sufficient and necessary condi-tions were provided for two special cases:a broadcast channel with degraded source sets and a more capable broadcast channel, and thus it could be seen that the separate source-channel code is optimal.关键词
分离信源信道码/安全传输/广播信道/疑义度/香农理论Key words
separate source-channel coding/secure communication/broadcast channel/equivocation/Shannon theory分类
信息技术与安全科学引用本文复制引用
郎非,王保云,邓志祥..基于分离信源信道码的相关信源在有噪广播信道下的可靠和安全传输[J].通信学报,2013,(10):17-27,11.基金项目
国家自然科学基金资助项目(61271232,60972045,61071089)；东南大学移动通信国家重点实验室开放研究基金资助项目（2012D05）Foundation Items：The National Natural Science Foundation of China (61271232,60972045,61071089) （61271232,60972045,61071089）
The Fund for National Mobile Communications Research Laboratory of Southeast University (2012D05) （2012D05）
