Title :
An interactive concatenated turbo coding system
Author :
Liu, Ye ; Tang, Heng ; Lin, Shu ; Fossorier, Marc
Author_Institution :
Datapath Syst. Inc., USA
Abstract :
Although turbo codes with iterative decoding have been shown to achieve bit-error rates (BER) close to the Shannon limit, they suffer from three disadvantages: a large decoding delay, an error floor at low BER, and a relatively poor frame error performance (FER). This paper presents an interactive concatenated turbo coding system in which a Reed-Solomon outer code is concatenated with a binary turbo inner code. In the proposed system, the outer code decoder and the inner turbo code decoder interact to achieve both good bit error and frame error performances. Also presented is an effective criterion for stopping the iterative decoding process and a new reliability-based decoding algorithm called the Chase-GMD algorithm for nonbinary codes
Keywords :
Reed-Solomon codes; concatenated codes; error statistics; iterative decoding; turbo codes; BER; Chase-GMD algorithm; FER; Reed-Solomon outer code; binary turbo inner code; bit-error rate; frame error rate; interactive concatenated turbo coding system; iterative decoding; nonbinary codes; reliability-based decoding algorithm; turbo codes; Bit error rate; Concatenated codes; Delay; Error correction codes; Iterative algorithms; Iterative decoding; NASA; Reed-Solomon codes; Testing; Turbo codes;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866665