说明：  这个是协作通信用的MRC的程序 信息源2个 中继1个 接收端用信息源和中继端收到的信号进行合成 （MRC） 然后用维特比解码 可以输出BER和FER 头文件还可以定义pathloss gain 一般协作通信的模板
(This is a collaborative communication process with the MRC information sources 2 relay a receiver with the information source and the relay received signal synthesis (MRC) and then use the Viterbi decoder can output BER and FER header files can also be the general definition of pathloss gain collaboration communication template)