Performance of switched-beam smart antennas for cellular radio systems

Author

Ho, Ming-Ju ; Stuber, Gordon L. ; Austin, Mark D.

Author_Institution

AT&T Bell Labs., Whippany, NJ, USA

Volume

47

Issue

1

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

10

Lastpage

19

Abstract

The performance and feasibility of switched-beam smart antennas for cellular radio systems is investigated. Switched-beam smart antenna systems are shown to either increase the capacity or extend the radio coverage by increasing the carrier-to-interference ratio (CIR). The trunking efficiency degradation caused by narrow-beam sectoring can be recovered or even improved by using a variety of trunkpool techniques. One drawback of switched-beam smart antennas is that the improvement in reverse-channel performance is not uniform over the entire cell area, and this presents a limiting factor on the achievable gains, practical considerations such as power control and the limited deployment of smart antenna cells are also addressed

Keywords

cellular radio; channel capacity; cochannel interference; directive antennas; interference suppression; land mobile radio; multibeam antennas; power control; radiofrequency interference; telecommunication control; achievable gains; carrier-to-interference ratio; cellular radio systems; cochannel interference; directive antennas; multibeam antenna; narrow-beam sectoring; power control; radio coverage; reverse-channel performance; smart antenna cells; switched-beam smart antennas; trunking efficiency degradation; trunkpool techniques; Adaptive arrays; Antenna arrays; Cellular networks; Costs; Degradation; Directive antennas; Land mobile radio cellular systems; Macrocell networks; Microcell networks; Receiving antennas;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.661027

Filename

661027