LDLC在合作通信中的应用  

Application of Low Density Lattice Code in Cooperation System

作　　者：朱联祥[1] 古昌金[1] 胡栓磊[1] 冯洁楷[1] 

机构地区：[1]重庆邮电大学信号与信息处理重庆市重点实验室,重庆400065

出　　处：《电视技术》2012年第19期139-141,154,共4页Video Engineering

摘　　要：针对LDLC码具有的良好性能和自身的特点,对协作分集系统和LDLC进行了研究,提出了在两用户协作情况下LD-LC的协作方案,接收端采用相乘再归一化的接收方式。结果表明:联合LDLC码对合作通信系统下的性能有着积极的改善作用,而且合作性能和信道状况有很大的关系,采取何种转发策略取决于具体的信道状态信息。According to the good properties and characteristics of LDLC, This paper studies cooperative diversity system and presents a scheme of LDLC applied in the case of two users to collaborate, the terminal uses the multiplying the normalized way. The results show that： the performance of LDLC under the cooperative system performance is better than that of no coding, and cooperation performance is relatd with channel condition, which strategy to use depends on CSI.

关 键 词：低密度格码 合作通信 分集技术 

分 类 号：TN949.6[电子电信—信号与信息处理]