Transmit antenna array techniques for cellular CDMA systems

Author

Liang, Ying-Chang ; Chin, Francois

Author_Institution

Centre for Wireless Commun., Singapore

Volume

3

fYear

1998

fDate

8-11 Sep 1998

Firstpage

1396

Abstract

Adaptive antenna arrays can be employed to improve the transmission quality and thus to increase the capacity of wireless communication systems. We address the transmit antenna array techniques for base-to-mobile (downlink) transmission in frequency-division-duplex (FDD) based cellular CDMA systems. A new criterion for transmit weight estimation is developed, which is based upon maximizing the transmit signal-to-interference-plus-noise ratio (SINR) and using downlink channel responses estimated by a probing feedback approach. Computer simulations show that the new transmit antenna array technique is effective for improving the capacity of the wireless communication systems

Keywords

adaptive antenna arrays; cellular radio; channel capacity; code division multiple access; feedback; multiuser channels; parameter estimation; radio links; radiofrequency interference; transmitting antennas; FDD; adaptive antenna arrays; base-to-mobile transmission; capacity; cellular CDMA systems; channel responses; computer simulations; downlink; frequency-division-duplex system; probing feedback; signal-to-interference-plus-noise ratio; transmission quality; transmit SINR; transmit antenna array techniques; transmit weight estimation; wireless communication systems; Adaptive arrays; Adaptive systems; Antenna arrays; Downlink; Feedback; Frequency; Multiaccess communication; Signal to noise ratio; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on

Conference_Location

Boston, MA

Print_ISBN

0-7803-4872-9

Type

conf

DOI

10.1109/PIMRC.1998.731427

Filename

731427