基于信源-信道联合编码的LTE网络数据传输算法

摘要

To solve the problem of low efficiency of source channel matching,and serious transmission jitter in the current source LTE data transmission scheme,the LTE network data transmission algorithm based on source channel joint coding was proposed.The source partition mapping transmission mechanism was constructed to finish the partition mapping transmission of source,and the fast bandwidth relocation mechanism was used for the elimination of redundant bandwidth.Concurrent rate priority channel ordering mechanism was used for the source.The Laplace coding cycle error elimination algorithm was used to obtain the best transmission sub channel.Simulation results show that the proposed algorithm has larger data transmission band width and higher transmission quality compared with ACEC and SM-CE.%为解决当前LTE数据传输方案中存在的信源-信道匹配效率低、传输抖动严重的不足,提出基于信源信道联合编码优化机制的LTE网络数据稳定传输算法.构建信源分割映射传输机制,对信源进行分割映射传输,使用快速带宽重定位机制来消除冗余带宽,借助并发码率优先信道排序机制重排信源,采用拉普拉斯编码循环误差消除算法来获取最佳传输子信道.仿真结果表明,与累计误差消除传输算法(adaptive cumulative cancellation algorithm,ACEC)、信道预估传输调制算法(stable modular algorithm for channel estimation,SM-CE)相比,所提算法的数据传输质量与传输带宽更高.