无线通信中二进制网络-信道联合删除译码法

无线通信中二进制网络-信道联合删除译码法 A Scheme of Joint Network-Channel Erasure Correction Decoding with Binary for Wireless Communication 牛芳琳 NIU Fanglin 1 first-author 张兴 ZHANG Xing 1 王冬霞 WANG Dongxia 1 辽宁工业大学电子与信息工程学院 辽宁工业大学电子与信息工程学院 Electron and Information Engineering College,Liaoning University of Technology Electron and Information Engineering College,Liaoning University of Technology 提出采用了网络信道联合纠错的编码（JNECD）的方法来降低网络传输的误码率,这种方法将接收到的数据包组成码字矩阵,利用信道编码与网络编码分别对码字矩阵的列和行联合校验检错,得到有可能错误的码元位置,删除所对应的码元,对剩余的码元解方程得到信源消息码字.仿真实验表明,在伽罗华域GF（2）中将JNECD方法与分离网络信道编码（SNCC）和直接传输（DT）方法相比,该算法可以降低通信系统的误码率和丢包率,提高数据包传输的正确概率,减少网络延时,提高网络吞吐量. The joint network-channel erasure correction decoding（JNECD）reduces the bit error rate in the wireless communication system.At the destination node,received data packets is composed of a symbol matrix.We can know the location of possible error symbols from the symbol matrix with channel check matrix and network code check matrix and then delete those symbols.The correct source symbols are worked out from the other code symbols.By the comparison with using JNCED,separate network channel code（SNCC）and direct transmission（DT）SNCC is proposed in the paper.The simulation results show that JNECD can reduce the BER and PER of the communication system,improve the packet delivery ratio,reduce end to end delay,and increase the throughput of the transmission network in GF（2）. 网络编码 删除信道 纠错码 网络信道联合编码译码方法（JNCC） network code erasure channel error correcting code joint network channel code （JNCC） 10.14188/j.1671-8836.2013.06.004 TN911.22 辽宁省博士启动基金（20121045）资助项目 2013-06-01 2021-04-01 6 59