Evaluation of a pre-RAKE smart antenna system for TDD CDMA systems

Author

Choi, Ruly Lai-U ; Murch, Ross D.

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China

Volume

3

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1543

Abstract

A disadvantage of TDD systems compared to FDD systems is the additional interference that can occur between the uplink and downlink. An antenna array is incorporated at the base station in order to reduce interference problems in a TDD system. With the benefit of an approximately reciprocal channel of a TDD system, this array is not only utilized to receive signals in the uplink, but also is utilized to transmit signals in the downlink for reducing interference. New results on pre-RAKE antenna combining are used to achieve this and improved performance is demonstrated by simulation results

Keywords

adaptive antenna arrays; cellular radio; code division multiple access; frequency division multiplexing; radiofrequency interference; time division multiplexing; FDD systems; TDD CDMA systems; adjacent cells; antenna array; interference reduction; pre-RAKE smart antenna; Antenna arrays; Availability; Base stations; Downlink; Geometry; Interference; Mobile antennas; Multiaccess communication; Receiving antennas; Solid modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956456

Filename

956456