Low-complexity smart antenna methods for third-generation W-CDMA systems

G Tsoulos, GE Athanasiadou, RJ Piechocki

Research output: Contribution to journalArticle (Academic Journal)peer-review

27 Citations (Scopus)
585 Downloads (Pure)

Abstract

There is still an open debate within the research community regarding the likely performance enhancement of smart antennas versus their complexity for commercial wireless applications. The goal of the study presented in this paper is to investigate the performance improvement attainable using relatively simple smart antenna techniques when applied to the third-generation W-CDMA air interface. Methods to achieve this goal include fixed multibeam architectures with different beam selection algorithms (maximum power criterion, combined beams) or adaptive solutions driven by relatively simple direction finding algorithms. After comparing these methods against each other for several representative scenarios, some issues related to the sensitivity of these methods are also studied, (e.g., robustness to environment, mismatches originating from implementation limitations, etc.). Results indicate that overall, conventional beamforming seems to be the best choice in terms of balancing the performance and complexity requirements, in particular when the problem with interfering high-bit-rate W-CDMA users is considered
Translated title of the contributionLow-complexity smart antenna methods for third-generation W-CDMA systems
Original languageEnglish
Pages (from-to)2382 - 2396
Number of pages15
JournalIEEE Transactions on Vehicular Technology
Volume49
Issue number6
DOIs
Publication statusPublished - Nov 2000

Bibliographical note

Publisher: Institute of Electrical and Electronic Engineers (IEEE)
Rose publication type: Journal article

Sponsorship: The authors wish to thank Prof. J. McGeehan, Dr. M. Beach, and Dr. A. Nix for their support during this activity. R. Piechocki
wishes to thank Fujitsu Europe Telecom R & D Centre Ltd. for sponsoring his Ph.D. work

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Keywords

  • adaptive algorithms
  • smart antennas
  • third
  • wavelength code division mupltiple access

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