2004•Acta Scientiarum Naturalium Universitatis SunyatseniRequires access

Hybrid chaotic sequence for QS-CDMA system with RAKE receiver

饶妮妮, 许晓晶, 李少谦

Abstract

A class of the hybrid chaotic sequences is presented. The generator of the sequences is given and realized by the digital method. The hybrid chaotic sequences exhibit good random properties that are very important for the performance of QS-CDMA system with RAKE receiver. The performance of the system is analyzed when the hybrid chaotic sequences are used as spreading codes in a QS-CDMA system with RAKE receiver and compared with those obtained for m-sequences and logistic sequences. The results show that the hybrid chaotic sequences are a class of very promising spreading codes for QS-CDMA system.

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Key concepts: Rake receiver, Chaotic, Code division multiple access, Rake, Sequence (biology), Computer science, Spread spectrum, Hybrid system