一种新型Turbo码交织器设计方法  

A New Design Approach for the Interleaver of Turbo Code

作　　者：王令成[1] 林中[2] 

机构地区：[1]北京邮电大学自动化学院,北京100876 [2]北京邮电大学华飞研究所,北京100876

出　　处：《计算机工程与应用》2004年第3期97-98,128,共3页Computer Engineering and Applications

摘　　要：Turbo码由于其优越的性能已经被IMT-2000确定为首选编码方案。交织器在Turbo码中起着关键性的作用。该文利用分组交织器和随机交织器的优点,设计出一种新型Turbo码交织器(分组随机交织器)。仿真结果显示,在信噪比较低、帧长较短的条件下,这种新型交织器具有比分组交织器和随机交织器更好的性能。Turbo code has been adopted by IMT-2000as the preferred encoding solution.Interleaver plays a key role in the property of Turbo code.This paper presents a new design approach for the interleaver,named as block-random interleaver.It comprehensively utilizes the merits of block interleaver and random interleaver.Simulation results show that the new interleaver possesses better property than block interleaver and random interleaver under the AWGN channel with the circumstances of the lower SNR and shorter frame.

关 键 词：Turho码 交织器 随机编码 分组交织器 随机交织器 分组随机交织器 

分 类 号：TN911.2[电子电信—通信与信息系统]