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On the analysis of switched-beam antennas for the W-CDMA downlink

  • Ben Allen
    ,
  • Mark Beach
Research Output:
Contribution to journal
Article
 Peer-review

Abstract

Smart antennas are widely recognized as an enabling technology for addressing the demand of future wireless network capacity when employed in place of traditional fixed-coverage sector antennas. Furthermore, switched-beam antenna systems offer a robust implementation against multipath propagation effects and reduced complexity that is inherent with fully adaptive implementations. This paper introduces a simple closed-form expression for evaluating the capacity increase of W-CDMA cellular networks employing switched-beam antennas. The expression incorporates the effect of practical antenna patterns and the impact of multipath scattering on code orthogonality, as well as that of pilot signal power. The results show that a reduction in downlink interference of approximately 6 dB can be achieved by installing an eight-beam antenna system in a 120° sector configuration when representative values of these parameters are taken into account.

Publication Information

Output type

Research Output:
Contribution to journal
Article
 Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 569-578

Journal (Volume, Issue Number)

IEEE Transactions on Vehicular Technology (Volume 53, Issue 3)

Publication milestones

  • Published - 01/05/2004

Publication status

Published - 01/05/2004

ISSN

0018-9545

Publication IDs

  • handle.net: 10547/269835
  • Scopus: 2942566599

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