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

This paper proposes and analyses an efficient wireless telecommunication system with multiple antennas to the emission and reception MIMO (multiple input multiple output) with space diversity in an OFDM (Orthogonal Frequency Di vision Multiplex). The

说明： 移动无线信道是一个充满复杂干扰的信道。由环境中的各种障碍物所引起的信号多径传播是其主要特点之一。这个源程主要对多径时变信道模型进行了仿真与性能分析。(Descr iption: mobile radio channel is a channel full of complex interference. Signal multipath propagation caused by various obstacles in the environment is one of its ma