Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2005-09-30
2008-12-02
Tse, Young T. (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S262000
Reexamination Certificate
active
07460620
ABSTRACT:
Joint channel estimation and maximum likelihood decoding method for Coded Orthogonal Frequency Division Multiplexing (COFDM) systems are presented. Using this method in conjunction with convolutional coding, robust and nearly optimal coherent detection can be achieved in rapid dispersive fading channels. Significant performance gain in packet data throughput is realized in a system with aggressive frequency reuse. A method for estimating channel characteristics in a multicarrier transmission system comprising the steps of receiving a multicarrier signal, applying Fast Fourier transformations to the multicarrier signal, estimating channel characteristics of a multicarrier channel over which the multicarrier signal was transmitted using a combination of iterative processing and iterative backward processing, and decoding the transformed multicarrier signal is presented.
REFERENCES:
patent: 5263033 (1993-11-01), Seshadri
patent: 5432821 (1995-07-01), Polydoros et al.
patent: 6026121 (2000-02-01), Sadjadpour
patent: 6459728 (2002-10-01), Bar-David et al.
patent: 6775260 (2004-08-01), Dabak et al.
patent: 6891897 (2005-05-01), Bevan et al.
patent: 7072381 (2006-07-01), Atarashi et al.
Chuang Justin C.
Li Ye
Lin Lang
AT&T Corp.
Brendzel Henry
Tse Young T.
LandOfFree
Method for near optimal joint channel estimation and data... 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 for near optimal joint channel estimation and data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for near optimal joint channel estimation and data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4040938