Joint Early Detection and Early Stopping scheme for complexity reduction of turbo decoding

Abstract

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.