Enhanced successive interference cancellation (SIC) receiver...

Details Enhanced successive interference cancellation (SIC) receiver... Enhanced successive interference cancellation (SIC) receiver...

2011-04-12

2011-04-12

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

07924933

ABSTRACT:
A method includes the steps of: i) listing out all possibilities for first symbol of a two stream signal; ii) determining a second symbol of the two stream signal for each said first symbol listed out, iii) evaluating a metric for each said first symbol and second symbol pair, iv) determining the exact maximum log likelihood ratio for all bits associated with said first symbol using said metrics, v) decoding a codeword-1using the maximum log likelihood ratios, vi) re-encoding said codeword-1, vii) modulating said re-encoded codeword-1, viii) subtracting said modulated re-encoded codeword-1from said two stream signal, ix) determining metrics for all possibilities for second symbol in the signal obtained in viii, x) determining the maximum log likelihood ratios for all bits associated with second symbol, and xi) decoding said codeword-2using the maximum log likelihood ratios for all bits associated with said second symbol.

REFERENCES:
patent: 7266168 (2007-09-01), Kwak et al.
patent: 7463703 (2008-12-01), McElwain
patent: 7567635 (2009-07-01), Scheim et al.
patent: 7639760 (2009-12-01), Kim
patent: 7724832 (2010-05-01), Hosur et al.
Kim, S.W. et al., “Log-Likelihood Ratio Based Successive Interference Cancellation in CMDA Systems”, Vehicular Technology Conference, 2003, VTC 2003-Spring, the 57th IEEE Semiannual, vol. 4, Apr. 22-25, 2003, pp. 2390-2393.
Ren, X et al., “A New Successive Interference Cancellation for Asynchronour CDMA”, Global Telecommunications Conference, 2003, GLOBECOM'03. IEEE vol. 1, Dec. 1-5, 2003, pp. 252-256.
Kim, S.W. et al., “Successive Interference Cancellation in CDMA Systems: Log-likelihood Ratio Approach”, Military Communications Conference, 2005, MILCOM 05 IEEE, vol. 2 Oct. 17-20, 2005, pp. 871-875.

Affiliated with

Also associated with

Rating

Enhanced successive interference cancellation (SIC) receiver... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Enhanced successive interference cancellation (SIC) receiver..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced successive interference cancellation (SIC) receiver... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2711538