calls for a good system that allows you to facilitate inquiries on their calls c...

引入PEG（Progressive-edge-growth）算法来构造适合线性时间编码的LDPC校验矩阵，译码时采用简化最小和Min-Sum译码算法实现简化译码．仿真结果表明，该方法能够构造适合LDPC码的线性时间编码的下三角校验矩阵日，并且用此方法构造的LDPC码性能非常接近原来PEG算法构造的LDPC码．同时通过采用最小和Min-Sum算法降低译码复杂度．-The introduction of PEG (Progressive-edge-growth) algorithm to construct suitable for linear time encoding of LDPC check matrix, decoding simplified when the smallest and the Min-Sum decoding algorithm decoding simplified. Simulation results show that this method can construct LDPC codes suitable for linear time encoding on lower triangular calibration matrix, and constructed using this method the performance of LDPC code is very close to the original PEG algorithm constructed LDPC codes. At the same time through the use of the smallest and the Min-Sum decoding algorithm to reduce complexity.

认知用户的发射功率是无约束的，两个认知用户和主用户在三维空间中的相对位置是随机分布的。

Generator Polynomial Coefficients

一款配和短信模块报警的软件程序,参考一下吧-Allocation and a warning message Module software program, refer to it

mc55-AT,2008-10-13,mc55_56 AT命令集 mc55_56 AT命令集 -mc55-AT ,2008-10-13, mc55_56 AT command set mc55_56 AT Command Set

matlab编写的jacks模型多径衰落信道模型，主要用的sum-of-sinusoids方法-matlab prepared jacks model multipath fading channel model, mainly used in sum-of-sinusoids method

find the probability of error

使用声卡拨电话的程序。将电话听筒拿起放到音箱附近，运行程序输入电话号码播放声音就可以实现拨电话。- The use sound card dials the telephone the procedure. Takes up the telephone receiver puts to the sound box nearby, the operating procedure input telephone number broadcast sound may realize dials the telephone.

本程序使用的平台时VS2005，目的是实现简单的通过TCP协议的通信。程序包中有两个解决方案，分别为客户端和服务器端，分别进行发送数据和接收数据。

MODBUS通信程序.可用于学习施耐得PLC通信、现在国产好多RTU都用MODBUS协议。-MODBUS communications procedures. Learning can be used Shi able to endure PLC communications, many Chinese now are using MODBUS RTU agreement.