A Simplified Single Correlator Rake Receiver for CDMA Communications

chenpeng3361

A Simplified Single Correlator Rake Receiver for
CDMA Communications
K. Murali Krishna, Abhijit Mitra and Cemal Ardil
Abstract—This paper presents a single correlator RAKE receiver
for direct sequence code division multiple access (DS-CDMA) systems.
In conventional RAKE receivers, multiple correlators are used
to despread the multipath signals and then to align and combine those
signals in a later stage before making a bit decision. The simplified
receiver structure presented here uses a single correlator and single
code sequence generator to recover the multipaths. Modified Walsh-
Hadamard codes are used here for data spreading that provides
better uncorrelation properties for the multipath signals. The main
advantage of this receiver structure is that it requires only a single
correlator and a code generator in contrary to the conventional RAKE
receiver concept with multiple correlators. It is shown in results that
the proposed receiver achieves better bit error rates in comparison
with the conventional one for more than one multipaths.
INTERNATIONAL JOURNAL OF INFORMATION TECHNOLOGY VOLUME 2 NUMBER 4 2005 ISSN 1305-2403

zlhrsy

tks a lot

yjvs

thanks very much for your sharing

WXY650713

好文章，支持

allentoy

好东西，谢谢啦

wxwx0329

下来看看  谢谢了

智慧棒

好东东啊，强烈支持啊！！！

mummy.ok

好东西 谢谢了哈