Near-far resistance of space-time processing for wireless CDMA communications

Author

Xao, W.Y. ; Bernstein, Xiao C. ; Haimovich, Alexander M.

Author_Institution

Center for Commun. & Signal Process., New Jersey Inst. of Technol., NJ, USA

Volume

1

Issue

4

fYear

1997

fDate

7/1/1997 12:00:00 AM

Firstpage

105

Lastpage

107

Abstract

In this letter we evaluate the performance of space-time adaptive processing for wireless code-division multiple access (CDMA) communications through analysis of the near-far resistance. The model assumed is that of a frequency-selective and slow-fading channel. It is shown that while maximum ratio combining is not near-far resistant, optimum combining is near-far resistant when the number of cochannel interferences is less than the system dimensionality.

Keywords

adaptive signal processing; array signal processing; cellular radio; cochannel interference; code division multiple access; fading; interference suppression; land mobile radio; radiofrequency interference; CDMA; cellular radio; cochannel interference; code-division multiple access; frequency-selective channel; maximum ratio combining; near-far resistance; optimum combining; performance evaluation; slow-fading channel; space-time adaptive processing; wireless communications; Base stations; Demodulation; Fading; Frequency; Interchannel interference; Multiaccess communication; Power control; Signal processing; Space technology; Wireless communication;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/4234.602598

Filename

602598