Adaptive antenna arrays for the co-channel interference cancellation in OFDM communication systems with virtual carriers

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Abstract

In this paper, we propose a blind beamforming algorithm for OFDM based communication systems. After applying the DFT operation to the output of each antenna, one estimates the signal plus interference spatial correlation matrix by selecting the samples at the %on-zero valued" subcarriers, and the interference-alone spatial correlation matrix by choosing those samples at the "zero valued" subcarriers (also known as virtual carriers). It was shown that the beamforming weight vector yielding the optimum signal to interference plus noise ratio is the "largest" generalized eigenvector of the resulting matrix pencil. The simulations presented here employ OFDM signal model to illustrate the eficiency of the proposed algorithms.

Original languageEnglish
Title of host publication2002 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAME 2002
PublisherIEEE Computer Society
Pages393-397
Number of pages5
ISBN (Electronic)0780375513
DOIs
StatePublished - 2002
EventIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002 - Rosslyn, United States
Duration: 4 Aug 20026 Aug 2002

Publication series

NameProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Volume2002-January
ISSN (Electronic)2151-870X

Conference

ConferenceIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002
Country/TerritoryUnited States
CityRosslyn
Period4/08/026/08/02

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