基于凿孔的卷积LDPC码编码协作

LDPC convolutional codes coded cooperation based on puncturing

为设计出可近容量限传输且能普适应用于慢、快衰落信道下的编码协作方案,研究了基于卷积LDPC码的编码协作。基于卷积LDPC码的凿孔算法构造出可2路传输的分码字,实现编码协作,并在第二帧分码字传输阶段引入了空时传输进一步提升编码协作的性能。仿真验证了所提方案的有效性。

To design a scheme that can approaching the capacity l imitat ion transfer, and generally applied to slow and fast fading, the coded cooperation based on LDPC convolutional codes was studied. Firstly, based on LDPC convolutional codes, the coded words were divided into two parts by puncturing algorithm to achieve coded cooperation. The space-time transmission was introduced into the second frame of coded cooperation to further improve the performance of the system. Simulation results show the effectiveness of proposed scheme