Signal detection and interference cancellation based on simplifi

Multiplex communications – Communication over free space – Combining or distributing information via code word channels...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

370441, 375349, 455 65, H04B 169, H04J 1300

Patent

active

058727760

ABSTRACT:
A multiuser detector for a CDMA system for real-time processing. Interference information of cross correlation from the signals of different users is processed to enhance the signal-to-noise ratio by suppressing the interference noise in a multiple-stage processing. A sampling processor is implemented to obtain at least two sets of data for each user with different integration times. The operation of the detector is dynamically adjusted to the operating condition of the CDMA system in a near real-time manner.

REFERENCES:
patent: 5579304 (1996-11-01), Sugimoto et al.
patent: 5644592 (1997-07-01), Divsalar et al.
patent: 5717717 (1998-02-01), Yang et al.
patent: 5719852 (1998-02-01), Schilling et al.
Aazhang, B., "An Analysis of Nonlinear Direct-Sequence Correlators", IEEE Transactions on Communications, vol. 37, No. 7, pp. 723-731, Jul. 1989.
Aazhang, G., "Neural Networks for Multiuser Detection in Code-Division Multiple-Acess Communications", IEEE Transactions on Communications, vol. 40, No. 7, pp. 1212-1222, Jul. 1992.
Verdu, S., "Minimum Probability of Error for Asynchronous Gaussian Multiple-Acess Channels", IEEE Transactions on Information Theory, vol. IT-32, No. 1, Jan. 1986.
Lupas,. Ruxandra, "Near-Far Resistance of Multiuser Detectors in Asynchronous Channels", IEEE Transactions on Communications, vol. 38, No. 4, pp. 496-507, Jul. 1990.
Xie, Z., Rushforth, C, "Multiuser Signal Detection Using Sequential Decoding", IEEE Transactions on Communications, vol. 38, No. 5, pp. 578-583, May, 1990.
Varanasi, M.K., Multistage Detection in Asynchronous Code-Division Multiple-Access Communications, IEEE Transactions on Communications, vol. 38, No. 4, pp. 509-519, Apr. 1990.

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

Signal detection and interference cancellation based on simplifi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal detection and interference cancellation based on simplifi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal detection and interference cancellation based on simplifi will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2068359

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