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A multipath interference cancellation technique for WCDMA downlink receivers
Author(s) -
Liu Derong,
Zare Hossein
Publication year - 2007
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.841
Subject(s) - rake receiver , computer science , multipath propagation , multipath interference , single antenna interference cancellation , code division multiple access , telecommunications link , interference (communication) , rake , wideband , electronic engineering , delay spread , multipath mitigation , orthogonality , channel (broadcasting) , telecommunications , mathematics , engineering , mechanical engineering , geometry
In this paper, we present a simple interference cancellation technique for the downlink of wideband code‐division multiple‐access (WCDMA) systems in multipath environment. With the same knowledge required by a RAKE receiver, the present method acts as an equalizer and cancels the interfering multipath signals from the received signal to retrieve the orthogonality property of the received signal. The present receiver has a simple structure and it has significant performance gain against the RAKE receiver. In addition, the noise enhancement is negligible when there is a line of sight path or the channel power delay profile has an exponential decaying form. Copyright © 2006 John Wiley & Sons, Ltd.