级联编码迭代接收技术的研究

Study of Iterative Receive Technique for Concatenated Codes

阐述了一种在信道编码与空时编码级联下接收端采用Turbo迭代机制进行接收的系统方案,给出了具体的迭代译码算法和步骤,并在相同的频谱利用率下进行了性能比较仿真,仿真结果说明级联Turbo码的空时编码系统比不级联空时编码系统能够提供更大的编码增益;在接收端采用Turbo迭代结构接收的级联接收系统比一般的级联接收系统具有更佳的误码性能。

Under concatenating both channel coding and space time coding, Turbo iterative receive in receiver was described. An iterative decoding method was also given. Some simulations were done in the common spectrum availability. Simulation results expatiated that the one compared with non-concatenated codes, the space time coding system of concatenated Turbo codes has bigger coding gain. If the system of concatenated Turbo codes was applied in the receiver, the better BER performance was obtained than that of common concatenated one.