摘要
提出了不规则重复累积(IRA)码实现比特交织编码调制(BIRACM)的设计方案,并在AWGN和Rayleigh平衰落信道下进行了仿真。仿真结果表明BIRACM的性能优于传统的网格编码调制和比特交织编码调制。
Irregular repeat accumulate (IRA) codes have natural liner- time encoding and deceding algorithms. Its performance is very close to Shannon limit. This paper presents IRA schemes using bit interlea- ving coded modulation (BIRACM)which can increase the spectral efficiency, and simulates BIRACM on AWGN and Rayleigh channel. Simulation results show that the performance of BIRACM outperforms traditional trellis - coded modulation (TCM) and BICM.
出处
《电讯技术》
2006年第2期114-117,共4页
Telecommunication Engineering
关键词
比特交织编码调制
不规则重复累积码
8PSK
bit - interleaved coded modulation
irregular repeat - accumulate (IRA) codes
8 PSK