新型级联码在移动通信中的性能仿真分析

A new cascade code performance simulation analysis in the mobile communication

相比于其它的通信信道,移动通信信道是最为复杂的一种。而移动通信信道区别于其它信道最明显的特征就是多径衰落和复杂恶劣的电波环境。这种衰落现象将严重降低接收信号的质量,影响通信的可靠性。而信道编码则是一种有效的方式来弥补信道衰落对信息传输质量的影响。在此研究的级联码采用Turbo-MTCM编码调制技术作为内码,RS编码作为外码,进行级联。这充分利用了MTCM在衰落信道下的优异性能和良好的增益,同时结合了RS码对突发错误的较强处理能力,从而提高了级联码的纠错能力,使移动通信具有更高的可靠性。

Compared with other communication channel, mobile communication channel is one of the most complicated. The mobile communication channel is different from other channel is the most obvious feature is the multipath fading and complex waves of bad environment. The decline phenomenon will seriously reduce the quality of the received signal, the influence on the reliability of the communication.And channel coding is an efficient way to compensate for the decline on the quality of the information transmission channel. In this paper, we study the cascade of code using Turbo-MTCM code modulation technology as some code, RS code as a code, carries on the cascade. It made full use of MTCM under the fading channel of the excellent performance and good gain, and at the same time is a combination of RS code to burst error strong processing capacity, so as to improve the ability of error correction of the cascade code, make mobile communications has higher reliability.