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. |
