Reception of a signal modulated according to a multilevel...

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S262000, C714S794000, C714S795000

Reexamination Certificate

active

07609787

ABSTRACT:
A method for receiving a signal modulated according to a multilevel coding technique, comprising at least two coding levels each having different noise robustness, said signal including a plurality of symbols each comprising at least one bit, assigned to one of said coding levels, said method comprising at least one decoding iteration including successive steps of decoding each of said received bits, at least one of said decoding steps integrated the result of at least one possible previous decoding step. The invention is characterized in that it consists in decoding said bits according to a predetermined sequence taking into account the robustness of said levels, the bit(s) assigned to the decoding level having the higher noise robustness, called most robust level, being decoded first.

REFERENCES:
patent: 6581182 (2003-06-01), Lee
patent: 6898248 (2005-05-01), Elgamal et al.
patent: 7046975 (2006-05-01), Golitschek Edler Von Elbwart et al.
patent: 2003/0051201 (2003-03-01), Brenna
patent: 2003/0091129 (2003-05-01), Zhang et al.
patent: 2003/0103584 (2003-06-01), Bjerke et al.
patent: 2004/0017857 (2004-01-01), Chouly et al.
patent: 0 540 232 (1993-05-01), None
patent: WO 01/67617 (2001-09-01), None
Cusak, “Error Control Codes for QAM Signalling,” Electronics Letter, Jan. 1984, vol. 20., No. 2, pp. 62-63.
Sayegh, “A Class of Optimum Block Codes in Signal Space,” IEEE Transactions on Communications, vol. Comm.-34, No. 10, Oct. 1986, pp. 1043-1045.
Papke et al., “Different Iterative Decoding Algorithms for Combined Concatenated Coding and Multiresolution Modulation,” IEEE International Conf., 1994, pp. 1249-1254.
Khairy et al., “Asymmetric Modulation and Multistage Coding for Multicasting with Multi-level Reception over Fading Channels,” IEEE, XP-000921925, Nov. 1999, pp. 92-96.
Kuhn, “Evaluating the Performance of Turbo-Coded Modulation in a DS-CDMA Environment,” IEEE Journal on Selected Areas in Comm., vol. 17, No. 12, Dec. 1999, pp. 2138-2146.
Martin, “On Multilevel Codes and Iterative Multistage Decoding,” IEEE Transactions on Comm., vol. 49, No. 11, Nov. 2001, pp. 1916-1925.
A.G. Burr, “Design of Optimum M-PSK Codes for Rayleigh Fading Channel,” IEE Proc.-Commun., vol. 147, No. 1, Feb. 2000, pp. 13-17.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Reception of a signal modulated according to a multilevel... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reception of a signal modulated according to a multilevel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reception of a signal modulated according to a multilevel... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4076759

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.