码分多址信道中的迭代译码及干扰消除技术

Iterative Decoding and Interference Cancellation Technology for the Code Division Multiple Access Channel

提出了一种码分多址在高斯白噪声信道中的迭代译码和干扰消除方案 ,在译码过程中 ,每个用户译码器的输出用来生成用户信号的软预测 ,预测值通过迭代译码和干扰消除得以改进 ,直到迭代收敛为止 ,然后对用户信号进行硬判决输出 ,最后 ,给出了模拟结果。

The paper presents a kind of scheme which is used for iterative decoding and interference cancellation for the code division multiple access channel in Gaussian white noise channel. For each user, the decoder output is used to generate a soft estimate of the user signal. The estimate value will be improved by iterating decoding and cancellation till convergence is reached and then a final hard decoding is performed. The simulation results obtained show that the performance of the system can be ameliorated.