空时网格编码级联分组码研究  

On space time block code based on space time trellis code system

作　　者：杨艳[1] 邵朝[1] 

机构地区：[1]西安邮电学院通信与信息工程学院,陕西西安710121

出　　处：《西安邮电学院学报》2011年第5期17-19,30,共4页Journal of Xi'an Institute of Posts and Telecommunications

基　　金：陕西省科技厅基金资助项目(2010JQ8030)

摘　　要：针对无线通信系统易受多径衰落影响的缺点,提出空时网格编码级联分组码系统,以提高无线通信的可靠性。理论分析显示,该系统能在不牺牲系统带宽的情况下,同时获得空时网格编码系统的编码增益和空时分组码系统的分集增益。借助计算机仿真比较该系统与原系统在相同的条件下的误码率,实验结果表明,该系统可以比同复杂度的空时网格编码系统节省大量的信噪比,是提高通信质量的一种有效方法。Considering the defects of multi-path fading, a system of space time block code （STBC） based on space time trellis code （STTC） is proposed. Theoretic analyses show that, without stimulating any additional channel bandwidth, the proposed system can acquire not only a diversity gain from the STTC system, but also a diversity gain from the STt3C system. Simulation results show that, under the same condition of complexity and in the same bit error rate, the proposed system can save more signal to noise ratio than only STrC system, so the proposed system is an effective way to improve the quality of communications.

关 键 词：空时网格编码 空时分组编码 空时网格编码级联分组码 

分 类 号：TN911.22[电子电信—通信与信息系统]