JOINT EARLY DETECTION AND EARLY STOPPING SCHEME FOR COMPLEXITY REDUCTION OF TURBO DECODING  

作　　者：Ma Zheng Fan Pingzhi Wai Ho Mow 

机构地区：[1]The Institute of Mobile Communications, Southwest Jiaotong University, Chengdu 610031, China [2]The Department of EEE, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong S.A.R.

出　　处：《Journal of Electronics(China)》2007年第3期316-320,共5页电子科学学刊（英文版）

基　　金：the National Natural Science Foundation of China (NSFC);the Research Grants Council of Hong Kong (RGC) joint research scheme (No.60218001/N_ HKUST617-02 and No.60272070).

摘　　要：In this paper,a Joint Early Detection and Early Stopping (JEDES) approach for effectively reducing the complexity of turbo decoding with negligible performance loss is proposed. It combines the effectiveness of both early detection and early stopping techniques. Our simulation results demon-strated that the proposed JEDES scheme based on cyclic redundancy check and trellis splicing can achieve a complexity saving of 15% to 20% at practical bit error rates over the idealized GENIE stopping scheme,which is widely accepted as the theoretically best possible early stopping scheme.In this paper, a Joint Early Detection and Early Stopping （JEDES） approach for effectively reducing the complexity of turbo decoding with negligible performance loss is proposed. It combines the effectiveness of both early detection and early stopping techniques. Our simulation results demonstrated that the proposed JEDES scheme based on cyclic redundancy check and trellis splicing can achieve a complexity saving of 15% to 20% at practical bit error rates over the idealized GENIE stopping scheme, which is widely accepted as the theoretically best possible early stopping scheme.

关 键 词：Stopping criterion Turbo codes Early detection THRESHOLD Trellis splicing 

分 类 号：TN911.2[电子电信—通信与信息系统]