一种新的准正交空时分组码的编码研究  

Novel Quasi-orthogonal Space-time Block Codes

作　　者：辛亮[1,2] 柏鹏 李明阳[1,2] 李奎[1,2] 

机构地区：[1]空军工程大学装备管理与安全工程学院,陕西西安710051 [2]综合电子信息系统与电子对抗技术研究中心,陕西西安710051

出　　处：《电视技术》2014年第13期91-94,共4页Video Engineering

基　　金：航空科学基金项目(20110196004);陕西省重点实验室基金项目(200908A;201102Y02)

摘　　要：准正交空时分组码可以牺牲一定的分集增益和解码的简单性,来避免当天线数目大于2时正交空时分组码码率下降的缺点。基于准正交空时编码的优点,为了进一步提升性能,提出一种新的4天线准正交空时分组码,并与RS码进行级联编码。仿真表明这种新的编码方法可以保证在复杂度不是很高的前提下,相比Jafarkhani码、TBH码和该广义复正交码具有更低的误码率。Quasi-orthogonal space-time block codes （QOSTBC） can sacrifice certain diversity gain and the decoding of simplicity to avoid the trans- mission rate of the faults when the line number are greater than 2. Based on the advantages of quasi-orthogonal space-time coding, in order to further improve performance, a new 4 antenna quasi-orthoganal space-time coding is put forward and RS code is jointed coding with. Simulation results show that this new coding method can guarantee under the premise that the complexity is not high, compared with Jafarkhani code and TBH code, the proposed generalized complex orthogonal code has a lower bit error rate.

关 键 词：MIMO 准正交空时分组码 RS码 最大似然译码 

分 类 号：TN911.22[电子电信—通信与信息系统]