论文部分内容阅读
比特交织编码调制及迭代译码(BICM-ID)是适合下一代移动通信系统的一种高效数据传输方式.交织器的设计是影响BICM-ID系统卓越性能的一个关键因素.为了进一步提高BICM-ID系统性能,本文研究了混沌理论在交织器设计中的应用,提出一种新的混沌交织算法,与伪随机交织器相比该方案具有更低的系统时延和更高的传输效率.加性Gauss白噪声信道和Rayleigh衰落信道中的性能仿真结果表明,本文所提出的混沌交织器比伪随机交织器的性能要好,在BICM-ID系统中具有卓越的性能.
BICM-ID is a highly efficient data transmission method suitable for the next generation of mobile communication system. The design of interleaver is a key factor that affects the performance of BICM-ID system.In order to further improve the BICM- ID system performance, this paper studies the application of chaos theory in the design of interleaver, and proposes a new chaos interleaving algorithm, which has lower system delay and higher transmission efficiency than the pseudo-random interleaver. The performance simulation in Gaussian white noise channel and Rayleigh fading channel shows that the chaotic interleaver proposed in this paper performs better than pseudo-random interleaver and has excellent performance in BICM-ID system.