Sequence Interference Suppression Characteristics of Code- Diversity DS/CDMA over Multipath Fading Channels

摘要

In this paper, the sequence interference suppression characteristics of code-diversity DS/CDMA over multipath fading chan- nels are presented. In a code-diversity system, the data signal is modu- lated with several PN sequences, and using these sequences at the re- ceiver, diversity reception of the signal is carried out to suppress the influence of multiple access interference (MAI) or sequence interfer- ence (SI) especially under a near-far problem. First, in a sequence in- terference and AWGN environment, the basic performance of code- diversity system is presented.