Structure and performance analysis of an SS-based digital modulation system
Structure and performance analysis of an SS-based digital modulation system
复制标题
基于SS的数字调制系统的结构和性能分析
DOI：
10.1049/iet-com.2015.0761
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发表时间：
2016
影响因子：
1.6
通讯作者：
Hua Jing-Yu
中科院分区：
文献类型：
--
作者：
Xu Zhi-Jiang;Wang Kang;Gong Yi;Lu Wei-Dang;Hua Jing-Yu
In this study, the parameter of a symmetricα‐stable (SαS) noise sequence is modulated by the binary message sequence to achieve a secure communication system. The characteristic exponent ‘α’ of an SαS noise sequence carries the binary information. In order to recover the binary message sequence at the receiver, the authors propose a logarithmic moments estimator to estimate the characteristic exponent ‘α’ of the transmitted noise sequence. The optimal decision threshold and the minimum theoretical bit error ratio are derived. It is shown that the simulation results of the presented logarithmic moments estimator are consistent with the analytical results. Moreover, this estimator shows better performance and lower computational complexity than the conventional SINC estimator based on the fractional low‐order moment method.
