Blind frequency-offset tracking scheme for multiband orthogonal frequency division multiplexing using time-domain spreading

J. Y. Kim; Y. H. You; T. Hwang

doi:10.1049/iet-com.2010.0631

Blind frequency-offset tracking scheme for multiband orthogonal frequency division multiplexing using time-domain spreading

J. Y. Kim, Y. H. You, T. Hwang

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

A blind scheme for estimating the residual carrier-frequency offset of multiband orthogonal frequency division multiplexing (MB-OFDM)-based ultra-wideband (UWB) systems is proposed. In the MB-OFDM UWB system, time-domain spreading (TDS) is used by transmitting the same information across two adjacent OFDM symbols. By using the TDS structure, the proposed frequency estimation scheme does not require the use of pilot symbols. To demonstrate the usefulness of the proposed estimator, analytical expression of the mean square error is derived and the performance is compared with a conventional pilot-assisted estimator.

Original language	English
Pages (from-to)	1544-1549
Number of pages	6
Journal	IET Communications
Volume	5
Issue number	11
DOIs	https://doi.org/10.1049/iet-com.2010.0631
Publication status	Published - 2011 Jul 22

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All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering

Cite this

Kim, J. Y., You, Y. H., & Hwang, T. (2011). Blind frequency-offset tracking scheme for multiband orthogonal frequency division multiplexing using time-domain spreading. IET Communications, 5(11), 1544-1549. https://doi.org/10.1049/iet-com.2010.0631

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AB - A blind scheme for estimating the residual carrier-frequency offset of multiband orthogonal frequency division multiplexing (MB-OFDM)-based ultra-wideband (UWB) systems is proposed. In the MB-OFDM UWB system, time-domain spreading (TDS) is used by transmitting the same information across two adjacent OFDM symbols. By using the TDS structure, the proposed frequency estimation scheme does not require the use of pilot symbols. To demonstrate the usefulness of the proposed estimator, analytical expression of the mean square error is derived and the performance is compared with a conventional pilot-assisted estimator.

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10.1049/iet-com.2010.0631