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SW-Log-MAP译码算法在3G移动通信中的应用

Application of SW-Log-MAP Decoding Algorithm in 3G Mobile Communication
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摘要 SW-Log-MAP译码算法在传统Turbo译码算法Log-MAP的基础上进行了改进,在保证译码性能的前提下,大大降低其运算复杂度,并将滑动窗的方法应用于译码模块,大大减少了存储空间;并且,在简化后的Turbo译码器基础上,通过仿真,对Turbo码的误码率性能进行研究,分析交织长度、滑动窗、纠正函数等因素对于译码性能的影响。 Based on the conventional Log-MAP decoding algorithm of turbo code, an improved SW-Log-MAP algorithm is proposed, which, by using sliding-window algorithm, greatly reduces the computational complexity and memory space without performance degradation. Based on the improved decoding structure, the improved algorithm is simulated to evaluate the influence of the parameters on performance of the turbo codes, such as interleave length, sliding window, error correct function and so on.
出处 《微电子学》 CAS CSCD 北大核心 2006年第5期638-641,650,共5页 Microelectronics
关键词 TURBO码 3G移动通信 Log—MAP算法 SW-Log—MAP算法 Turbo code 3rd Generation mobile communication Log-MAP algorithm Sliding-window Log-MAP algorithm
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参考文献6

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二级参考文献6

  • 1ROBERTSON P,HOEHER P, VILLEBRUN E. Optimal and sub-optimal maximum a posteriori algorithms suitable for turbo decoding [ J ]. European Trans On Telecommun. 1997,8(3): 119-125.
  • 2BENEDETTO S, DIVSALAR D,MONTORSI G, et al. Soft-output decoding algorithms for continuous decoding of parallel concatenated convolutional codes [A]. Proc ICC'96[C]. Dallas,USA, 1996.112-117.
  • 3PIETROBON S S. Efficient implementation of continuous MAP decoders and a synchronisation technique for Turbo decoders [A]. Proc Int Symp Inform [C]. Theory Appl , Victoria, Canada,1996. 586-589.
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  • 5刘树军,李佩英,郑建宏.Turbo码在3G中的应用与DSP实现[J].重庆邮电学院学报(自然科学版),2002,14(1):43-46. 被引量:5
  • 6于秀兰,许萍,郑建宏.迭代MUD技术在SCDMA系统中的应用[J].重庆邮电学院学报(自然科学版),2002,14(4):28-32. 被引量:3

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