室内传播模型之一射线跟踪法仿真与实现的MATLAB源代码-indoor propagation model one ray-tracing method, simulation and implementation of MATLAB source code

LDPC码在基于BP (Belief Propagation) 的迭代译码相结合的条件下具有逼近Shannon 限的性能，是继turbo 码后在纠错编码领域又一重大进展。压缩文件中给出了LDPC在高斯信道下的c程序。-LDPC codes based on BP (Belief Propagation) Iterative Decoding of combining conditions with performance approaching Shannon limit on the heel

MAPPER86/87.A DX MAP DRAWING and Propagation Program for IBM PC Compatibles with graphics capability (Numerical Coprocessor version, Basic source code included)