Precision Bits Can Be Reduced by One in Max-Log-MAP-Based Decoder

摘要：

The addition and taking the maximum (max) operations, as well as all the quantized data involved in the Max-Log-MAP Turbo decoding algorithm form a commutative max-sum semiring. In this paper performance degradation of Turbo decoding caused by shift operations using fixed-point data representation and unified precision bits is solved when the distributive law is properly applied to this semiring, with a bonus of considerable computational saving and precision bit reduction from 3 to 2 for all the pertinent variables with negligible performance degradation.

作者: Jun Ling Lei Xie Kuang Wang

作者单位: Dept. of ISEE Zhejiang University Hangzhou, PRC

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 2559-2564

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）