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Two signatures' codes linear decorrelator detector for CDMA systems

Wireless Telecommunications Symposium, 2009. WTS 2009, 1-7 • 2009
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Publication Information
Authors AY Hassan, AM Hassan, AF Hussian
Keywords Code division multiple access (CDMA)-multiple access interference (MAI)-matched filter-decorrelator detectorminimum mean square error (MMSE) detector- signature codes correlation matrix.
Journal Wireless Telecommunications Symposium, 2009. WTS 2009, 1-7
Publisher Not Available
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publication.type International
Paper Link Not Available
Supplementary Materials Not Available
Abstract
Code Division Multiple Access (CDMA) is a widely used multiple
access method in a lot of nowadays vital applications. The
systems that are designed based on CDMA are suffering from
multiple access interference (MAl) problem [1]. A lot of CDMA
detectors are designed to overcome the (MAl) problem. But as
the capability of CDMA detector in (MAl) cancellation increases,
the complexity of the detector increases too [2]. This paper gives
a proposal of a new linear CDMA detector that has the same
multiple access interference (MAl) cancellation capability as
CDMA decorrelator detector. The structure complexity of this
new proposed detector is as simple as the matched filter detector
structure. Solving the (MAl) problem in CDMA system with
sim pIe detector structure at the receiver helps on increasing the
CDMA system capacity. The new proposed detector operation is
based on the symmetry property of CDMA signatures' codes
cross-correlation matrix.