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无线光通信中一种TPC+OSTBC的级联空时编码方法
徐建武,王红星
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(海军航空工程学院电子信息工程系，山东烟台 264001)

摘要:

在正交空时分组码（OSTBC）基础上，分析了Turbo乘积码（TPC）和OSTBC级联方案的可行性，提出了一种采用TPC+OSTBC级联的空时编译码方案，分别仿真分析了不同TPC分量码、不同接收天线数目下系统的差错性能，并对采用OSTBC和TPC+OSTBC级联方法系统的差错性能进行了对比分析。仿真结果表明：该级联空时编码方法可同时获得全分集和全速率，且差错性能明显优于只采用OSTBC。

关键词: 无线光通信级联编码 Turbo乘积码正交空时分组码

DOI：

基金项目:山东省“泰山学者”建设工程项目

A cascade space-time coding method based on TPC and OSTBC in FSO communication systems

XU Jian-wu,WANG Hong-xing

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Abstract:

The feasibility of cascading TPC(Turbo Product Code) with orthogonal spacetime block code(OSTBC) is analysed and a spacetime coding scheme adopting TPC and O STBC is proposed. The BER performance of this scheme is simulated under differen t TPC subcodes and number of receiving antennas and compared with systems only adopting OSTBC. The simulation results show that this spacetime coding scheme can achieve both full diversity and full rate and the BER performance of the ca scading scheme is much better than that of scheme only using OSTBC.

Key words: free space optical cancatenated coding Turbo product code orthogonal space time block code