一种串行级联OVCDM系统的性能分析

In this paper a system structure applying a SISO iterative decoding module with a OVCDM encoder concatenated to a convolutional encoder is presented. By simulating with Matlab, the performance between this system and a system employing soft decision decoding with a traditional modulation and coding scheme under the condition of the same spectral efficiency is compared to show the advantage of this structure. The influence of numbers of iterations and interleaver parameter to this structure is also analysed.