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: |
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基金项目:山东省“泰山学者”建设工程项目 |
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A cascade space-time coding method based on TPC and OSTBC in FSO communication systems |
XU Jian-wu,WANG Hong-xing |
() |
Abstract: |
The feasibility of cascading TPC(Turbo Product Code) with orthogonal spacetime
block code(OSTBC) is analysed and a spacetime coding scheme adopting TPC and O
STBC is proposed. The BER performance of this scheme is simulated under differen
t TPC subcodes and number of receiving antennas and compared with systems only
adopting OSTBC. The simulation results show that this spacetime 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 |