IMT-Advanced协作中继的网络编码技术  

Network Coding of IMT-Advanced Cooperative Relay

作　　者：李颖[1] 孙岳[1] 白宝明[1] 

机构地区：[1]西安电子科技大学ISN国家重点实验室,陕西西安710071

出　　处：《中兴通讯技术》2011年第5期11-14,共4页ZTE Technology Journal

基　　金：国家科技重大专项(2010ZX03003-003-03);国家自然科学基金项目(61072064)

摘　　要：网络编码技术的本质是在中间节点上对多条输入链路的数据信息进行线性或非线性处理转发。网络编码技术应用于IMT-Advanced系统中时,不仅可用于提高中继转发效率,还可用于设计干扰利用传输策略,以节约小区内的时频资源。文章针对多址接入中继信道模型,讨论了几种可提高中继转发效率的网络编码传输策略,研究了基于网络编码的干扰利用传输策略,分析了网络编码标准化过程中所面临的各种问题,指出引入网络编码技术对中继传输协议、控制帧格式以及用户调度和资源管理算法等的影响。The essence of network coding is that intermediate network nodes combine data from multi-input links by linear or non-linear operations and then forward. Therefore, network coding in an IMT-A system improves relay efficiency and can be used to design interference use schemes that save time-frequency resources in a cell. In this paper, several network coding transmission schemes for the multiple-access relay channel are discussed. Interference use schemes based on network coding are also discussed and some issues in network coding standardization are raised. The effect of network coding on relay transmission, control frame format, user scheduling, and resource management are discussed in conclusion.

关 键 词：多址接入中继信道 网络编码 联合网络-信道编码 干扰利用 

分 类 号：TN929.5[电子电信—通信与信息系统]