网络编码在无线通信系统物理层中的应用

Application of Network Coding in Physical-Layer of Wireless Communication Systems

在对网络编码技术概念及发展现状的研究基础上,分析网络编码在无线通信系统物理层中的应用,重点研究物理层网络编码技术以及网络编码与信道编码的联合设计,并进行综述。一方面,介绍物理层网络编码机制,对物理层网络编码的主要研究热点进行分类,包括物理层网络编码的编解码设计、同步问题、与其他传输技术的结合、信息容量分析以及应用场景扩展,总结现有成果及发展方向。另一方面,研究不同网络编码与信道编码联合设计方案,根据设计的不同角度,将其归纳为结合信道编码的类型、改造软信息处理的方式、利用物理层网络编码及考虑不同的系统场景。

Based on study of the principles and development of network coding,the survey analyzes its applicable techniques in the physical-layer of wireless communication systems and focuses on Physical-layer Network Coding（PNC）and the joint design of channel coding and network coding techniques.On one hand,the survey firstly introduces the mechanism of PNC and then summarizes the current results and future directions of the following classified hot topics：coding and decoding design,synchronization problem,combination with other transmission techniques,PNC capacity and application scenario extensions of PNC.On the other hand,the survey reviews the joint design techniques of channel coding and network coding in accordance with different starting points which are inducted as basing on the type of channel coding,modifying the mode of handling soft information,utilizing of PNC and considering various system scenarios.