基于联合编码误差消除机制的LTE-5G数据传输算法  

Optimal transmission algorithm for LTE-5G data based on joint coding error elimination mechanism

作　　者：范晖[1] 夏清国[2] 黄健[1] FAN Hui;XIA Qing guo;HUANG Jian(College of Information and Engineering, Xijing University, Xi＇an 710123, China;College of Computer, Northwestern Polytechnical University, Xi＇an 710072, China)

机构地区：[1]西京学院信息工程学院,陕西西安710123 [2]西北工业大学计算机学院,陕西西安710072

出　　处：《计算机工程与设计》2018年第5期1247-1253,共7页Computer Engineering and Design

基　　金：国家自然科学基金项目(51405382);陕西省教育厅专项科研计划基金项目(16JK2239)

摘　　要：针对当前LTE-5G网络数据优化传输算法存在的误码扩散严重,且其传输过程中易受信道噪声干扰的问题,提出基于联合编码误差消除机制的LTE-5G网络数据优化传输算法。基于信道误码率性能排序,构建误差分组生成机制,利用一级、二级误差分组的误差扩散特性,采用回溯方式优化信源-信道交互期间的传输误差;基于分组误差块排序的等级特性,构建分级映射降噪规则,优化信号预发射过程,减缓信源编码中存在的误码扩散现象。仿真结果表明,与当前自适应数据压缩传输优化算法(adaptive data compression transmission algorithm,ADCT)、分支误差优化传输算法(branch error optimal transmission algorithm,BEOT)相比,所提算法具有更强的抗噪性能与更低的传输误码率。The error propagation of current LTE-5G data transmission optimization algorithm is severe,and the algorithm is extremely vulnerable to source error and channel noise,to solve the problems,a LTE-5G data transmission optimization algorithm based on joint encoding error elimination mechanism was proposed.Based on the BER performance of the channel sorting,the formation mechanism of construction of error packets was constructed,and the transmission error of source channel interaction was reduced by backtracking based on the diffusion characteristics of the first and second level error packets.Based on the hierarchical characteristics of block error block sorting,a hierarchical mapping noise reduction rule was constructed,which optimized the signal pre launch process and slowed the phenomenon of code error in source coding.The simulation results show that the proposed algorithm has stronger noise immunity and lower transmission error rate compared with the current ADCT algorithm and BEOT algorithm.

关 键 词：LTE-5G网络 联合编码 分级映射 误差扩散 误差分组 信源-信道交互 信道误码 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]