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A novel pilot aided time of arrival (TOA) estimation algorithm for vehicular OFDM systems in specular wireless channels
Published in
2008
Abstract
Channel estimation is vital for implementing schemes such as coherent detection and adaptive bit loading, which make OFDM an attractive PHY layer technology for vehicular wireless communications. However, knowledge of th exact time of arrival (TOA) information of the multi-path components of the vehicular wireless channel is required to achieve efficient channel estimation. Super-resolution algorithms which use embedded pilot information, such as ESPRIT and MUSIC have been used to estimate this information in the cas of sparse multi-path channels. In this paper, we propose a new efficient algorithm based on the Matrix Pencil Method which averaged covariance matrices and requires just a single Eigen value finding routine to yield the TOA. © 2008 IEEE.
About the journal
Journal2008 IEEE Globecom Workshops, GLOBECOM 2008
Open AccessNo
Concepts (25)
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    ADAPTIVE BIT LOADINGS
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    COHERENT DETECTIONS
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    Covariance matrices
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    Efficient algorithms
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    Eigen values
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    EMBEDDED PILOTS
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    IMPLEMENTING SCHEMES
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    MATRIX PENCIL METHODS
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    MULTI-PATH COMPONENTS
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    OFDM SYSTEMS
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    PILOT-AIDED
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    SPARSE MULTI-PATH CHANNELS
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    SUPER-RESOLUTION ALGORITHMS
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    TIME OF ARRIVALS
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    TIME-OF-ARRIVAL ESTIMATIONS
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    VEHICULAR WIRELESS
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    Wireless channels
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    Covariance matrix
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    Estimation
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    Frequency allocation
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    Mobile telecommunication systems
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    Optical systems
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    Orthogonal frequency division multiplexing
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    Wireless telecommunication systems
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    Channel estimation