Optimal combining for RAKE reception in mobile cellular CDMA forward links

Author

Noneaker, Daniel L.

Author_Institution

Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA

Volume

3

fYear

1998

fDate

18-21 Oct 1998

Firstpage

842

Abstract

Two methods for multipath combining are compared for RAKE reception of a CDMA cellular forward-link traffic channel. Combining based on estimation of the signal-to-interference ratio of the output of each tap of the RAKE receiver is shown to provide significant performance improvement in comparison with the more commonly considered combiner that is based on measurement of the signal strength. The performance of RAKE receivers using the two methods of combining is considered for several fading, multipath channels

Keywords

cellular radio; code division multiple access; fading channels; multipath channels; multiuser channels; optimisation; radio links; radio receivers; radiofrequency interference; telecommunication traffic; RAKE reception; SIR estimation; fading channels; mobile cellular CDMA forward links; multipath channels; multipath combining; optimal combining; performance improvement; signal strength measurement; signal-to-interference ratio; traffic channel; Base stations; Correlators; Diversity reception; Fading; Land mobile radio cellular systems; Mobile communication; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1998. MILCOM 98. Proceedings., IEEE

Conference_Location

Boston, MA

Print_ISBN

0-7803-4506-1

Type

conf

DOI

10.1109/MILCOM.1998.726943

Filename

726943