分布式Goppa码在中继处的优化算法  

Optimization Algorithm of Distributed Goppa Codes at Relay

作　　者：封芳安 仰枫帆[1] FENG Fangan;YANG Fengfan(Nanjing University of Aeronautics and Astronautics,Nanjing 210016)

机构地区：[1]南京航空航天大学,南京210016

出　　处：《舰船电子工程》2023年第8期110-113,138,共5页Ship Electronic Engineering

摘　　要：为了改善衰落信道对通信系统的不利影响,针对该问题,将信道编码与协作通信相结合,提出了一种分布式Goppa码中继编码协作方案。该方案在源节点和中继节点分别采用两组不同的Goppa码。提出了在中继节点的优化设计准则,以获得目的节点处最佳优化的联合码。此外,还提出了两种联合译码算法。仿真表明,所提出的分布式Goppa编码方案优于非协作方案并且与所提出的分布式Goppa码方案中的随机选择相比,通过适当的信息选择可以获得一定的性能增益,在不同的信道下,该系统性能都能得到不错的提升。In order to improve the adverse effects of fading channels on communication systems,a cooperative scheme of dis⁃tributed Goppa code relay coding is proposed by combining channel coding with cooperative communication.The scheme uses two different groups of Goppa codes at the source node and the relay node respectively.The optimal design criteria at the relay node are proposed to obtain the optimal joint code at the destination node.In addition,two joint decoding algorithms are proposed.Simulation results show that the proposed distributed Goppa coding scheme is superior to the non cooperative scheme,and compared with the random selection in the proposed distributed Goppa coding scheme,a certain performance gain can be obtained through appropriate information selection,and the system performance can be improved well in different channels.

关 键 词：分布式编码 Goppa码 信息选择 联合译码 

分 类 号：TN911.2[电子电信—通信与信息系统]