交织的空时分组码级联不对称网格编码调制方法  

Concatenated space-time block coding with asymmetric MPSK TCM

作　　者：敖珺[1,2] 马春波[1] 敖发良[1] 廖桂生[2] 

机构地区：[1]桂林电子科技大学信息与通信学院微波光波研究室,广西桂林541004 [2]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《通信学报》2010年第1期100-104,共5页Journal on Communications

基　　金：国家自然科学基金资助项目(60862001);新世纪人才基金资助项目(NCET-04-0947);广西信息与通讯技术重点实验室主任基金资助项目(10908)~~

摘　　要：根据交织的空时分组码级联TCM编码设计标准,提出了一种空时分组码级联不对称网格编码调制(A-TCM)的优化设计方案,并得到了在空时分组码级联不对称8PSK调制的TCM情况下最优的星座图旋转角度。仿真和分析结果表明,在相同的频谱效益和译码复杂度的情况下,相比传统空时分组码级联TCM的方法,新方法可进一步提高系统性能。The field of concatenated space-time block coding （inner） with trellis coded modulation （outer） has recently attracted interest as a means of jointly considering the error correction coding gain and diversity gain possible without bandwidth expansion and power expansion over fading channels. A concatenated space-time block coding （STBC）with asymmetric MPSK TCM scheme, based on the design criteria for constructing improved concatenated space-time block coding with TCM, was presented by introducing the new optimal signal point assignment. Analysis and simulation results demonstrate that these concatenated STBC with asymmetric MPSK TCM have better coding gain than traditional concatenated STBC with TCM under the same spectral efficiency, decoding complexity.

关 键 词：空时分组码 格形编码调制 不对称相位调制 

分 类 号：TN929.22[电子电信—通信与信息系统]