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A Pre-FFT OFDM Adaptive Array Antenna with Eigenvector Combining
Shinsuke HARA Quoc Tuan TRAN Yunjian JIA Montree BUDSABATHON Yoshitaka HARA
IEICE TRANSACTIONS on Communications
Publication Date: 2006/08/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
OFDM, adaptive array antenna, co-channel interference suppression, eigenvector,
Full Text: FreePDF(810.9KB)
This paper proposes a novel pre-FFT type OFDM adaptive array antenna called "Eigenvector Combining." The eigenvector combining array antenna is a realization of a post-FFT type OFDM adaptive array antenna through a pre-FFT signal processing, so it can achieve excellent performance with less computational complexity and shorter training symbols. Numerical results demonstrate that the proposed eigenvector combining array antenna shows excellent bit error rate performance close to the lower bound just with 2 OFDM symbol-long training symbols.