摘要
提出应用于多天线系统的空时编码是未来无线移动通信中极具前途的一种技术。文中在详细论述了空时Turbo网格码的基础上,针对Log-MAP译码提出了优化方案。仿真结果表明,新的算法在大大降低译码复杂度的同时较好地保持了译码性能,使其非常接近Log-MAP算法的译码性能,同时也非常有利于硬件实现。
Space-time coding applied in MIMO system is a promising technology in the future wireless mobile communications. This paper discusses space-time Turbo trellis code in detail. Upon this, the paper proposes an improved scheme for decoding. Simulation results show that the proposed algorithm has performance very close to the Log-MAP algorithm for Turbo codes decoding and can decrease the decoding complexity greatly at the same time. In addition, realization of the new algorithm by hardware is very easy.
出处
《信息技术》
2008年第8期102-104,共3页
Information Technology
