Pulse or digital communications – Receivers – Interference or noise reduction
Patent
1995-02-24
1998-08-04
Chin, Stephen
Pulse or digital communications
Receivers
Interference or noise reduction
375233, 375262, 375341, 375350, 455507, 4552781, H04L 100, H04L 2701
Patent
active
057906068
ABSTRACT:
Methods and systems for processing signals in radio communication systems are described which include processes for handling co-channel interference while reducing the number of Viterbi states being processed. A spatial analogy to the Viterbi MLSE process is provided. Both the uplink and downlink cases are described.
REFERENCES:
patent: 5202903 (1993-04-01), Okanoue
patent: 5390215 (1995-02-01), Antia et al.
patent: 5566209 (1996-10-01), Forssen et al.
patent: 5615409 (1997-03-01), Forssen et al.
International Search Report regarding International Appln. No. PCT/US96/02498 Date of Mailing: 24 Jul. 1996.
"Optimum Multiuser Detection in Single-Path Rayleigh Fading Channels", Zvonar et al. Presented at Twenty-Ninth Allerton Conference on Communication, Control and Computing, pp. 390-399, Oct. 1991.
"On Multiuser Detection in Asynchronous CDMA Flat Rayleigh Fading Channels", Zvonar et al., PIMRC, five pages, 1992.
"A Comparison of Differentially Coherent and Coherent Multiuser Detection With Imperfect Phase Estimates in Rayleigh Fading Channel", Zvonar et al., IT, one page, 1993.
"Adaptive Multiuser Receiver For Fading CDMA Channels With Severe ISI", Zvonar et al., appearing in the Proceedings of Conference on Information Sciences and Systems, six pages, Mar. 1993.
"Signal Detection and Parameter Estimation in Multiuser Communications", Xie, IEEE Transactions on Communications, vol. 41, No. 7, pp. 1208-1216, Aug. 1993.
"A Spread-Spectrum Multiaccess System with Cochannel Interference Cancellation for Multipath Fading Channels", Yoon, IEEE Jouranl on Selected Areas in Communications, vol. 11, No. 7, pp. 1067-1975, Sep. 1993.
"On Synchronous CDMA for Mobile Communications", Kajiwara, IEEE Globecom., pp. 858-862, 1992.
"Optimum Detection in Asynchronous Multiple-Access Multipath Rayleigh Fading Channels", Zvonar et al., Twenty-Sixth Annual Conference on Info. Sciences and Systems, Princeton Univ., six pages, Mar. 1992.
"Suboptimum Multiuser Detector for Synchronous CDMA Frequency-Selective Rayleigh Fading Channels", Zvonar et al., five pages, CTMC, 1992.
"Coherent and Differentially Coherent Multiuser Detectors for Asynchronous CDMA Frequency-Selective Channels", Zvonar et al., IEEE MILCOM, pp. 0442-0446, 1992.
"Minimum Probability of Error for Asynchronous Gaussian Multiple-Access Channels", Verdu, IEEE Transactions on Information Theory, vol. IT-32, No. 1, pp. 85-96, Jan. 1986.
"Linear Multiuser Detectors for Synchronous Code-Division Multiple-Access Channels", Lupas et al., IEEE Transactions on Information Theory, vol. 35, No. 1, pp. 123-136, Jan. 1989.
"Near-Far Resistance of Multiuser Detectors in Asynchronous Channels", Lupas et al., IEEE Transactions on Communications, vol. 38, No. 4, pp. 496-508, Apr. 1990.
"A Near-Far Resistant Sliding Window Decorrelating Algorithm for Multi-User Detectors in DS-CDMA Systems", Wijayasuriya et al., IEEE Globecom., pp. 1331-1338, 1992.
"Rake Decorrelating Receiver for DS-CDMA Mobile Radio Networks", Wijayasuriya et al., Electronics Letters, vol. 29, No. 4, pp. 395-396, Feb. 1993.
"Rake Decorrelation as an Alternative to Rapid Power Control in DS-CDMA Mobile Radio", Wijayasuriya et al., IEEE, pp. 368-371, 1993.
"A Family of Suboptimum Detectors for Coherent Multiuser Communications", Zie et al., IEEE Journal on Selected Areas in Communications, vol. 8, No. 4, May, 1990.
"Adaptive Maximum-Likelihood Receiver for Carrier-Modulated Data-Transmission Systems", Gottfried UngerBoeck, IEEE Transactions on Communications, vol. COM-22, No. 5, pp. 624-636, May, 1974.
Chin Stephen
Ericsson Inc.
Le Amanda T.
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