In order to get good link adaptation performance, a class of QC - LDPC codes which are well - fitted for puncturing and extending was proposed. Then the RC schemes for different target coding rates were instructed. Simulation results show that the proposed codes have good performance under puncturing and extending over a wide range of rates. In addition,these codes are linear - time encodable with simple register circuits and easy for decoding. Thus it is applicable for future mobile communications and deep - space communications.%为了得到更好的链路自适应性能,首先给出了一类适合进行删除和扩展的QC-LDPC母码矩阵,然后通过速率兼容码构造方案实现了一系列想要得到的码率.仿真结果表明,所给的通过删扩方案得到的一系列码字具有良好的误码性能,并且,可以通过使用简单的移位寄存器电路在线性时间内编码,其解码方案亦很简单.因此,LDPC码在未来移动通信和深空通信中具有较大的发展潜力.
展开▼
