多用户多进制FM-DCSK误码率分析  

Bit Error Rate Analyze of Multiple-Access M-ary FM-DCSK

作　　者：刘平[1] 李宁[1] 邢军阳[1] 

机构地区：[1]郑州大学信息工程学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2014年第6期43-46,51,共5页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省重点科技攻关计划项目(112102310073)

摘　　要：多用户调频差分混沌键控已经得到了深入研究,其非周期性、宽带性、不可预测性特别适合应用于多用户无线保密通信系统,但是传统的二进制多用户调频差分混沌键控传输效率较低.针对这种情况,提出一种新的多用户多进制调频差分混沌键控通信系统,解决了二进制系统传输效率低的缺点,并且在选择合适的电平间隔后,可以有效改善多用户多进制调频差分混沌键控通信系统的误码率.另外,给出了多用户多进制调频差分混沌键控调制系统的原理以及系统的误码率公式.仿真结果表明,误码率公式与理论分析相符合,具有实际应用的价值.Multiple-Access Frequency Modulated Differential Chaos Shift Keying （MAFM-DCSK） has been studied for a long time ; the features of aperiodic, broadband and unpredictable of MAFM-DCSK are particular- ly suitable for multiple-access communication systems. But the transmission efficiency of traditional binary MAFM-DCSK is very low. In this paper, we propose a Multiple-Access M-ary FM-DCSK communication sys- tem which can improve the transmission efficiency significantly. This paper introduces the principle of Multi- ple-Access M-ary FM-DCSK communication system and gives the Bit Error Rate（BER） formula. Through the simulation, we can conclude that the BER formula coincide with the theoretical analysis. So the Multiple-Ac- cess M-ary FM-DCSK communication system has the actual value of application.

关 键 词：多用户 多进制 FM-DCSK 误码率 

分 类 号：TN911.4[电子电信—通信与信息系统]