Blind CDMA interference rejection in multipath channels

Author

Mangalvedhe, Nitin R. ; Reed, Jeffrey H.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

1

fYear

1997

fDate

4-7 May 1997

Firstpage

21

Abstract

The performance of conventional code division multiple access (CDMA) receivers is limited by multiple access interference (MAI) and near-far effects. The severity of the problem is increased in multipath channels. A RAKE receiver exploits multipath diversity but is unable to suppress interference. Adaptive receivers can exploit multipath and suppress MAI, however this approach requires a training sequence. This paper presents a new blind algorithm that is capable of optimally combining multipath while canceling MAI

Keywords

code division multiple access; diversity reception; interference suppression; land mobile radio; multipath channels; radio receivers; radiofrequency interference; CDMA receivers; RAKE receiver; adaptive receivers; blind CDMA interference rejection; blind algorithm; code division multiple access; linearly constrained constant modulus algorithm; mobile radio; multipath channels; multipath diversity; performance; AWGN; Base stations; Diversity reception; Fading; Interference suppression; Least squares approximation; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.596311

Filename

596311