A linearized power method for adaptive beamforming in a multipath fading CDMA environment

Sungsoo Ahn, Seungwon Choi, Tapan K. Sarkar

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

This paper discusses an adaptive procedure of a simplified power method for computing the eigenvector corresponding to the largest eigenvalue of an autocovariance matrix. The objective is to generate a suboptimal weight vector for an adaptive array operating in a multipath fading CDMA (code-division multiple access) channel. The total computational load of the proposed procedure is about O(4N), including an autocovariance matrix update, where N is the number of weights. The performance of the proposed array system is shown in terms of the BER (bit-error rate) and tile allowable capacity, in a modeled IS-95 CDMA signal environment.

Original languageEnglish (US)
Pages (from-to)361-365
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume31
Issue number5
DOIs
StatePublished - Dec 5 2001

Keywords

  • Adaptive array
  • Linearized procedure
  • Maximum eigenvalue
  • Power method

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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