Simulation of telecommunication system with 2D log MAP receiver algorithm

Turbo码的对数MAP算法，经测试无误(log-MAP algorithm for Turbo codes, tested without errors)

Turbo码的编译码器的MATLAB语言仿真程序，包括SOVA译码算法和LOG－MAP译码算法(The MATLAB language simulation program of Turbo code, including SOVA decoding algorithm and log-map decoding algorithm.)