An adaptive array antenna with no phase calibration for cdma2000 reverse link

Author

Chulajata, Tatcha ; Kwon, Hyuck M.

Author_Institution

Dept. of Electr. & Comput. Eng., Wichita State Univ., KS, USA

Volume

2

fYear

2000

fDate

2000

Firstpage

816

Abstract

In this paper, we present an inexpensive smart antenna algorithm for a 3^rd generation code division multiple access (CDMA) system, e.g., cdma2000. Our algorithm can track the total input phase including the direction of arrival angle (DOA) from the desired user and fading phase at each antenna element. As a result, the channel estimation is not required. Furthermore, the phase distortion due to the radio frequency (RF) mixer in each antenna element is compensated automatically by our algorithm. Thus, the phase calibration is not necessary in our smart antenna algorithm if only the reverse link demodulation is concerned. The proposed algorithm is obtained by modifying the normalized least mean square (N-LMS) adaptive filter

Keywords

adaptive antenna arrays; adaptive filters; array signal processing; cellular radio; code division multiple access; direction-of-arrival estimation; fading; least mean squares methods; DOA; N-LMS adaptive filter; RF mixer; adaptive array antenna; cdma2000 reverse link; code division multiple access; direction of arrival angle; fading phase; normalized least mean square adaptive filter; phase calibration; phase distortion; reverse link demodulation; total input phase; Adaptive arrays; Antenna arrays; Calibration; Channel estimation; Direction of arrival estimation; Directive antennas; Fading; Multiaccess communication; Phased arrays; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

MILCOM 2000. 21st Century Military Communications Conference Proceedings

Conference_Location

Los Angeles, CA

Print_ISBN

0-7803-6521-6

Type

conf

DOI

10.1109/MILCOM.2000.904044

Filename

904044