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Cancellation of external and multiple access interference in cdma systems using antenna arrays

Author
Muñoz, O.; Fernandez, J.
Type of activity
Journal article
Journal
Signal processing
Date of publication
1997-09
Volume
61
Number
2
First page
113
Last page
129
DOI
https://doi.org/10.1016/S0165-1684(97)00097-2 Open in new window
Repository
http://hdl.handle.net/2117/97937 Open in new window
URL
http://www.sciencedirect.com.recursos.biblioteca.upc.edu/science/article/pii/S0165168497000972 Open in new window
Abstract
This paper deals with the problem of multisensor-multiuser detection in CDMA systems in the presence of interferences external to the system. The paper presents a new method able to estimate the spatial signature of all active users projected onto the subspace orthogonal to the external interference. With this information a specific beamformer can be designed for each user in order to combat the external and multiple access interference. The method performs in frequency non-selective multipath s...
Citation
Muñoz, O., Fernandez, J. Cancellation of external and multiple access interference in cdma systems using antenna arrays. "Signal processing", Setembre 1997, vol. 61, núm. 2, p. 113-129.
Keywords
Array signal processing, Asynchronous DS-CDMA systems, Covariance matrix analysis, Multipath fading, Multiuser communications, Spatial signature estimation, Subspace-based interference suppression
Group of research
SPCOM - Signal Processing and Communications Group

Participants