基于中国余定理的分组码在协作通信中的应用

Application on Cooperative Communication of Array Code Based on Chinese Remainder Theory

分组码可看作代数方法设计的准循环码,将其作为分量码,利用中国余定理联合设计,可以获得比分量码更好的性能.首先给出了分组码(array code)和截短分组码(shortened array code)的定义,接着给出了基于中国余定理(Chinese Remainder Theory,CRT)的联合设计方法,进一步简要描述了协作通信系统模型,并给出了基于中国余定理设计的分组码在协作通信系统中的性能仿真,仿真结果表明,中国余定理设计的分组码与其分量码相比可以有效改善系统的性能.

Array code may be regarded as a QC-LDPC code constructed by algebraic method.Better performance can be obtained than the component array code if Chinese Remainder Theory combined method is employed.First the notation of array code and shortened array code are given.Then the combined method based on Chinese Remainder Theory is described.Furthermore,the cooperative communication system is presented.Moreover performance comparison for CRT combined array code over cooperative communication syetem is given.Simulation results show that CRT combined array code can obtain a better performance compared to its component array code.