一种性能优越的Turbo码SOVA译码算法  

A SOVA decoding algorithm with better performance for Turbo codes

作　　者：许成谦[1] 孙桂萍[1] 高艳东[1] 韩雪飞[1] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004

出　　处：《无线电通信技术》2006年第6期22-24,61,共4页Radio Communications Technology

基　　金：国家自然科学基金(NO.60272026)

摘　　要：MAP译码算法性能上是最优的,但是其复杂度也是十分高的,影响了硬件的实现,介绍了一种性能上接近于MAP译码算法,复杂度上有明显减少的译码算法,并且对其进行了完善,仿真结果表明对于二进制Turbo码,改进后的译码算法与MAP算法的译码性能更为接近。The performance of MAP decoding algorithm is optimal, but its complexity is very high, which affects its implementation in fact. This paper introduces a new decoding algorithm with the performances similar to that of MAP algorithm and with lower complexity, and makes it more perfect . The simulation results show that the new SOVA algorithm performs very close to the MAP algorithm for binary turbo codes.

关 键 词：TURBO码 译码算法 MAP SOVA 

分 类 号：TN957.521[电子电信—信号与信息处理]