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基于混沌数字编译码器与TurboCDMA,提出了一种新型CDMA通信系统———混沌Tur-boCDMA。其优点在于用混沌数字编译码器替代TurboCDMA中的交织器,从而减少了交织环节引起的时延,消除了多用户干扰(MUI)的影响。最后得出了该系统的信噪比。仿真结果表明,即使在中、低信噪比时,其多用户误码特性依然接近单用户特性。
Based on the chaotic digital codec and TurboCDMA, a new type of CDMA communication system-Chaos TurboCDMA is proposed. Its advantage lies in replacing the interleaver in TurboCDMA with the chaotic digital codec, thus reducing the delay caused by the interleaving and eliminating the influence of multi-user interference (MUI). Finally, the system’s signal to noise ratio. The simulation results show that the multi-user BER characteristics are still close to single-user characteristics even at medium and low signal-to-noise ratios.