Research and simulation of multi-user chaotic spread spectrum communication based on modified chaotic sequence
Bin Yu, Lianhong Wang, Jia Ya-qiong · Jisuanji yingyong yanjiu · 2013
This paper constructed a multi-user chaotic spread spectrum communication system based on a modified chaotic sequence.And it gave the theory and SIMULINK simulation model of this system.It also detailelly illustrated the performance of the modified chaotic spread spectrum communication,including the fractal parameter and the initial value of the modified chao-tic sequence,the signal noise rate and the number of user.Simulations analyzed the bit error rate(BER) how it changes depending on the changes in the signal noise rate or the number of user in both the modified chaotic sequence and the traditional chaotic sequence.The results show that the performance of the modified chaotic sequence is much better than that of the traditional chaotic sequence,and the system has very good ability against noise and multiple access interference.