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QPP内交织器的架构设计与实现
刘钊元,俞晖,徐友云,王海龙
0
(上海交通大学 无线通信技术研究所,上海 200240;电信科学技术研究院 无线移动通 信国家重点实验室,上海 200233;联芯科技有限公司,上海 200233)
摘要:
为达到较高的吞吐率,在Turbo码并行译码时,需采用二次置换多项式 (QPP)内交织器 。通过理论分析,提出一种新的QPP内交织器实现方法与架构。相比现有的实现方法,提出 的 实现方法复杂度降低,计算简单,资源占用减少。软件仿真结果证明了该方法的正确性。
关键词:  Turbo码  并行译码  QPP内交织器  架构  实现方法
DOI:
基金项目:国家科技重大专项(2009ZX03002-003,2009ZX03002-005)
Architecture Design and Implementation of a QPP Internal Interleaver
LIU Zhao-yuan,YU Hui,XU You-yun,WANG Hai-long
(Institute of Wireless Communication Technology,Shanghai Jiaotong University, Shanghai 200240,China;State Key Laboratory of Wireless Communications, Shanghai 200233,China;Leadcore Technology Co.,Ltd., Shanghai 200240, China)
Abstract:
In order to get a high throughput, QPP(Quadratic Permutation Polynomial) inner interleaver is adopted fo r Turbo parallel decoding.Through theoretical analysis, a new implementation me thod and architecture is proposed. Compared with the existing method, the proposed me thod can reduce the complexity and resource consumption and is easily calculated , and simulation result shows that this method is correct.
Key words:  Turbo code  parallel decoding  QPP internal interleaver  architecture  implemen tation method