ldpc的11个程序 encode decode extract make-gen make-ldpc make-pchk print-gen print-pchk rand-src transmit verify 共十一个程序，学习ldpc编码的重要资料

数据经过多进制QAM调制下，通过高斯信道的误码率比较-the rand data are modulated by MQAM ，then pass the gausschannel ，get the compared result of ber.

Even though the RAND functions can be useful for generating uniform random numbers, most of the time w ill need to model various non-uniform distributions, such as the Normal, Lognormal, Exponential, Gama, and others. In fact, the Uniform distributio

LTE系统蜂窝网基站用户UE随机分布部署 -Cellular network UE rand distribution