DF-AF-comparion

modbus_com 通讯功能，包括PLC程序(modbus_com communication project,include PLC program)

可实现，线性调频信号的产生，波形显示，波形解调和码字解调功能(Realizable, chirp signal generation, waveform display, waveform demodulation and codeword demodulation)

AF，DF，CC,三种基本协作方式仿真程序(Simulation of three basic collaborative approach)

完整的GMSK仿真程序，viberbi很好的实现,可以很好解决问题(it is very good for Complete GMSK simulation program can be good. if you use it,ok)

光纤放大器模拟程序，包括泵浦功率、光纤增益、光纤长度等参数(fiber amplifier)

full source to hilgraeve HyperTerm 5.0 that is shipped with windows

turbo encoding and decoding using map algorithm.interleaver is s-random interleaver

It is mainly used for ARQ simulation ,such as stop-and-wait

说明：  快衰落多输入多输出信道中，无信道状态信息的酉空时调制。属于信道发射和接收两端均无信道状态信息的非相干空时码。程序包含一个主程序和一个酉空时信号产生子程序，并给出误比特率。(Unitary space-time modulation without channel state information in fast fading MIMO channels. It belongs to the incoherent space-time code with no channel state information at both ends of the channel transmitting and receiving. The programs include a main program and a unitary space-time signal generation subroutine, and gives the bit error rate.)

为了提高MIMO-OFDM系统的数据传输率和频谱利用率,提出一种新的自适应算法。该算法在保证信道质量所需误码率和总发射功率的前提下,按照各个子载波衰落程度动态地分配比特和功率,使系统的总数据传输速率最大。理论分析得出,该算法降低了系统运算复杂度,能很大地改善系统的整体性能。(In order to improve data transmission rates and spectrum efficiency of MIMO-OFDM systems,this paper proposes a new adaptive algorithm. While the channel transmission quality to meet the requirements of a certain target BER(bit error rate) and total emissive power,according to each sub-carrier decline degree to adjust each sub-carrier modulation method freely,try to minimize the total data rate of system. Theory analysis shows the algorithm can reduce system complexity and improve overall performance of the ...)