Title :
Iterative tri-stage decoding for turbo codes in partial response channels
Author :
Tsai, Meng-Guang ; Hou, Kuen-Suey ; Tsao, Hen-Wai
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Combination of turbo codes with partial response (PR) channels was comprehensively studied in magnetic recording systems. In this paper, we investigate a decoding scheme called ´iterative tri-stage decoding´ for the turbo code as the outer code and the precoded PR channel as the inner code. This decoding scheme reduces the computational complexities by reducing the number of iterations without degrading the coding gain.
Keywords :
channel coding; iterative decoding; magnetic recording; partial response channels; turbo codes; computational complexities; inner code; iterative tri-stage decoding; magnetic recording systems; outer code; partial response channels; precoded PR channel; turbo codes; AWGN; Computational complexity; Concatenated codes; Convolutional codes; Degradation; Intersymbol interference; Iterative decoding; Magnetic recording; Partial response channels; Turbo codes;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464591
