迭代接收机性能建模方法研究进展

针对迭代接收机的性能建模方法,从等效模型、传递参数、性能提取及传递关系等4个方面概述了研究成果,并归纳了各自特点及发展趋势.服从高斯分布的对数似然比信息等效模型是迭代接收机性能建模研究的基础,以互信息为传递参数并通过仿真获得互信息传递关系图,以误比特率或保真度为传递参数的半公式化传递关系及以互信息为传递参数的半公式化传递关系分别是性能分析、性能优化及链路联合设计等3种应用场景下性能建模的代表性方法,是迭代接收机性能建模研究的发展方向.

Advance of performance modeling for Turbo receivers

Aiming at the performance modeling for Turbo receivers, the research results are summarized, in the meanwhile, the characteristics and future trends are concluded in terms of equivalent model, transitive parameter, performance abstraction and transitive relation. The Gaussian distribution of equivalent model for log-likelihood ratiois the foundationof performance modeling research.Representative methods for application scenarios such as performance analysis, performance optimization and joint design with link are to derive the transfer chart with mutual information as transitive parameter, to derive semi-analytical transitive relation with bit error rate or fidelity as transitive parameterand to derive semi-analytical transitive relation with mutual information as transitive parameter, respectively. These methods represent the development direction of performance modeling for turbo receivers.