COST207频率选择性信道下实现多级编码和空时编码的级联方案  

Research on concatenation scheme MLC-STBC over COST207 frequency selective channels

作　　者：罗骥[1] 袁东风[1] 吴大雷[1] 

机构地区：[1]山东大学信息科学与工程学院,山东济南250100

出　　处：《通信学报》2005年第6期137-141,共5页Journal on Communications

基　　金：国家自然科学基金资助项目(60372030);国家留学回国基金资助项目(教外司留[2003]406);山东省自然科学重点基金资助项目(Z2003G02)

摘　　要：提出了一种应用于正交频分复用系统(OFDM)中的多级编码和空时分组编码级联方案(MLC-STBC),并将这种级联方案应用于COST207频率选择性信道中。在COST207的典型城市(TU)模型中应用这种级联方案取得了很好的编码增益和分集增益。通过分析也发现,对MLC-STBCOFDM系统来说,Ungerboeck分割(UP)也是最优的集分割方案。A concatenation scheme MLC-STBC combining multilevel coding and space-time coding for orthogonal frequency division multiplexing (OFDM) systems was proposed and the concatenation scheme was applied over COST207 frequency selective channels. The simulation results show that MLC-STBC can both coding gain and diversity gain when the scheme was used in the environment of COST207 Typical Urban (TU) model. From the analysis, It conclude that Ungerboeck Partitioning (UP) is the optimum mapping strategy for MLC-STBC OFDM systems.

关 键 词：多级编码 空时分组码 正交频分复用 COST207 

分 类 号：TN911.22[电子电信—通信与信息系统]