Title :
Threshold for regular LDPC codes over PR channels
Author :
Thangaraj, Andrew ; McLaughlin, Steven W.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
We consider a graphical procedure to calculate the coding threshold for regular low-density parity-check (LDPC) codes over binary-input partial response (PR) channels using Gaussian approximations. The calculated threshold, while serving as a target for design of LDPC codes over PR channels, can also be used as a upper bound on the capacity-achieving SNR of PR channels
Keywords :
Gaussian processes; approximation theory; channel capacity; decoding; equalisers; error detection codes; partial response channels; BCJR equalizer; Gaussian approximations; PR channels; binary-input partial response channels; capacity-achieving SNR; coding threshold; graphical procedure; low-density parity-check codes; regular LDPC codes; sum-product message-passing decoder; upper bound; AWGN; Binary phase shift keying; Equalizers; Equations; Error probability; Gaussian approximation; Iterative decoding; Parity check codes; USA Councils; Upper bound;
Conference_Titel :
Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-7123-2
DOI :
10.1109/ISIT.2001.935933
