Summary
International Symposium on Nonlinear Theory and Its Applications
2016
Session Number:A4L-E
Session:
Number:A4L-E-7
Performance Evaluation and Analysis of Chaotic CDMA Considering Synchronization Acquisition
Kohei Ito, Thong Huynh, Kaori Kuroda, Mikio Hasegawa,
pp.-
Publication Date:2016/11/27
Online ISSN:2188-5079
Summary:
Chaotic sequences have been shown to be effective for Direct Sequence / Code Division Multiple Access (DS / CDMA). Because the spreading codes generated by the chaotic sequences have negative autocorrelation, the chaotic sequences can minimize interferences of the DS/CDMA system. However, the error of synchronization acquisition due to the negative autocorrelation characteristics in chaotic sequences is not considered. Therefore, we study the bit error rate (BER) of the Chaotic sequence in DS/CDMA system by considering the synchronization acquisition. As a result, optimal autocorrelation is changed compared to conventional results. More specifically, we derive both simulation analysis and theoretically analysis to find the optimal autocorrelation to minimize error caused by negative autocorrelation in chaotic sequence with taking synchronous acquisition.