双向中继网络中基于MSK的物理层网络编码  

Physical-Layer Network Coding Based on MSK in Two-Way Relay Networks

作　　者：沙楠[1] 高媛媛[2] 王辉[3] 杨保峰[2] 高宇[4] 

机构地区：[1]解放军理工大学通信工程学院研究生4队 [2]解放军理工大学通信工程学院 [3]海军指挥学院研究生3队 [4]中国人民解放军73617部队

出　　处：《军事通信技术》2013年第2期53-56,共4页Journal of Military Communications Technology

摘　　要：文中提出一种基于最小频移键控(MSK)调制的双向中继网络物理层网络编码(PNC)方案。该方案利用MSK信号记忆特性,在中继节点处将MSK和信号空间状态转移条件映射为异或信号,采用维特比算法近似最大似然检测。在此基础上进一步简化和信号的网格图,降低解码复杂度。最后仿真验证了所提方案的有效性。A Physical-layer Network Coding（PNC） method was introduced based on MSK in two-way relay networks. By using the memory properties of MSK signal, the relay node maps the state transition condition of MSK sum-signals into XORed messages, and the Viterbi algo- rithm can be adopted by approximating the maximum likelihood decoding for XORed messages. A low complexity decoding scheme was proposed using a reduced-state trellis. The simulation re- sults show that this method is effective.

关 键 词：双向中继网络 物理层网络编码 状态转移 

分 类 号：TN925.3[电子电信—通信与信息系统]