Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2006-03-28
2006-03-28
Torres, Joseph (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S781000
Reexamination Certificate
active
07020829
ABSTRACT:
An approach is provided for transmitting messages using low density parity check (LDPC) codes. Input messages are encoded according to a structured parity check matrix that imposes restrictions on a sub-matrix of the parity check matrix to generate LDPC codes. The LDPC codes are transmitted over a radio communication system (e.g., satellite network), wherein a receiver communicating over the radio communication system is configured to iteratively decode the received LDPC codes according to a signal constellation associated with the LDPC codes. The receiver is configured to iteratively regenerating signal constellation bit metrics after one or more decoding iterations.
REFERENCES:
patent: 6539367 (2003-03-01), Blanksby et al.
patent: 6633856 (2003-10-01), Richardson et al.
patent: 2002/0048329 (2002-04-01), Tran et al.
patent: 2002/0136318 (2002-09-01), Gorokhov et al.
patent: 2003/0037298 (2003-02-01), Eleftheriou et al.
patent: 2003/0065989 (2003-04-01), Yedida et al.
patent: 2003/0079171 (2003-04-01), Coe
patent: 2003/0081691 (2003-05-01), Sutskover et al.
patent: 2 310 186 (2001-12-01), None
Zhang, T.; Parhi, K.K.; High-performance, low-complexity decoding of generalized low-density parity-check codes, IEEE Global Telecommunications Conference, vol.: 1, Nov. 25-29, 2001, pp.: 181-185.
Boutros, J.; Pothier, O.; Zemor, G.; Generalized low density (Tanner) codes, 1999 IEEE International Conference on Communications, vol.: 1, Jun. 6-10, 1999, pp.: 441-445.
Engling Yeo; Pakzad, P.; Nikolic, B.; Anantharam, V.; VLSI architectures for iterative decoders in magnetic recording channels, IEEE Transactions on Magnetics, vol.: 37, Issue: 2, Mar. 2001, pp.: 748-755.
S.Y. Le Goff, “Channel capacity of bit-interleaved coded modulation schemes using 8-ary signal constellations”, Electronics Letters, Feb. 14, 2002, vol. 28, No. 4.
R.G. Gallager, “Low Density Parity-Check Codes”, XP-000992693, IRE Transactions of Information Theory, 1962, pp. 21-28.
Hisashi Futaki & Tomoaki Ohtsuki, “Performance of Low-Density Parity-Check (LDPC) Coded OFDM Systems”, Tokyo University of Science, Faculty of Science and Technology, Tokyo University of Science, Japan, 2000 IEEE, pp. 1696-1700.
E. Eleftheriou & S. Olcer, “Low-Density Parity-Check Codes for Digital Subscriber Lines”, IBM Research Zurich Research Laboratory, Switzerland, 2002 IEEE, pp. 1752-1757.
Tolga M. Duman & Masoud Salehi, “Performance Bounds for Turbo-Coded Modulation Systems”, Transactions Papers, XP-002263494, 1999 IEEE, pp. 511-521.
S. ten Brink, J. Speidel and R.H. Yan, “Iterative demapping for QPSK Modulation”, Electronics Letters, Jul. 23, 1998, vol. 34, No. 15.
Tong Zhang and Keshab K. Parhi, “Joint Code and Decoder Design for Implementation-Oriented (3,k)-regular LDPC Codes”, Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, USA, 2001 IEEE, pp. 1232-1236.
Thomas J. Richardson and Rudiger L. Urbanke, “Efficient Encoding of Low-Density Parity-Check Codes”, XP-002965294, IEEE Transactions on Information Theory, vol. 47, No. 2, Feb. 2001, pp. 638-656.
K.R. Narayanan and J. Li, “Bandwidth Efficient Low Density Parity Check Coding Using Multi Level Coding And Iterative Multi Stage Decoding”, Texas A&M University, College Station, TX, USA, 2ndInternational Symposium on Turbo-Codes & Related Topics-Brest-France, 2000, XP009021988, pp. 165-168.
David J. C. MacKay, “Good Error-Correcting Codes Based on Very Sparse Matrices”, XP-002143042, IEEE Transaction on Information Theory, vol. 45, No. 2, Mar. 1999, pp. 399-431.
Xiaodong Li and J.A. Ritcey, “Bit-Interleaned Coded Modulation With Iterative Decoding Using Soft Feedback”, Electronics Letters, May 14, 1998, vol. 34, No. 10.
Eroz Mustafa
Lee Lin-Nan
Sun Feng-Wen
Hughes Electronics Corporation
Torres Joseph
Whelan John T.
LandOfFree
Method and system for decoding low density parity check... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for decoding low density parity check..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for decoding low density parity check... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3572976