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Blind multiuser detection with array observations

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hdl:2117/98271

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Rodríguez Fonollosa, JavierMés informacióMés informacióMés informació
Zvonar, Z
Rodríguez Fonollosa, José AdriánMés informacióMés informacióMés informació
Catala, J
Document typeArticle
Defense date1998-01
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Cochannel interference is usually a major limitation to the performance of mobile wireless systems. Examples of different forms of cochannel interference include multi-access interference in CDMA systems and cochannel interference resulting from frequency reuse in TDMA systems. In order to mitigate the interference from other users we present a blind multiuser receiver which utilizes array observations and performs both spatial and temporal processing of the received signal. The presented technique is completely blind in the sense that no signature sequences, channel state or spatial location needs to be known a priori, nor use of a training sequences, channel state or spatial location needs to be known a priori, nor use of a training sequence is required for the adaptation. The diversity introduced by the array observations can be efficiently combined with the use of CDMA signature sequences. After initial convergence, a reliable estimate of the combined temporal and spatial signature for each user is provided that can be employed by a multiuser receiver of lower complexity.
CitationR. Fonollosa, Javier, Zvonar, Z., Fonollosa, José A. R., Catala, J. Blind multiuser detection with array observations. "Wireless personal communications", Gener 1998, vol. 6, núm. 1-2, p. 179-196. 
URIhttp://hdl.handle.net/2117/98271
DOI10.1023/A:1008844620736
ISSN0929-6212
Publisher versionhttp://link.springer.com.recursos.biblioteca.upc.edu/article/10.1023/A%3A1008844620736
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