Interference reduction in a communication signal

Details Interference reduction in a communication signal Interference reduction in a communication signal

2011-08-30

2011-08-30

Timory, Kabir A (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S324000, C375S346000, C375S348000, C375S349000, C375S262000, C375S325000, C375S260000

Reexamination Certificate

active

08009771

ABSTRACT:
The invention concerns the reduction of interference in a communication signal sent through a communication channel, where this interference is a performance limiting factor. The communication channel is any channel that can be described with memory elements. A Soft Input Soft Output receiver of a communication signal receives the communication signal and a priori information about the communication signal. Next creating candidate vectors having 1 to K samples by iteratively drawing samples using Gibbs sampling and using the a priori information. If a drawn kth sample of a candidate vector has not changed value for a predetermined number of created candidate vectors, then the value of the drawn kth sample is changed.

REFERENCES:
patent: 2006/0023636 (2006-02-01), Farhang-Boroujeny et al.
patent: 2 398 979 (2004-09-01), None
Wang et al. (Blind Turbo Equalization in Gaussian and Impulsive Noise, Jul. 2001, IEEE, vol. 50, pp. 1092-1105).
Chen et al., “Convergence Analyses and Comparisons of Markov Chain Monte Carlo Algorithms in Digital Communications”, IEEE Transactions on Signal Processing, vol. 50, No. 2, Feb. 2002, pp. 255-269.
Abed-Meraim et al., “Iterative Turbo Decoding Using Gibbs Sampling”, Proc. 2ndInt. Conf. on Information, Communications and Signal Processing, ICICS '99 Singapore, Dec. 7-10, 1999, 4 pages.

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