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Wireless LAN White Papers

Delay Spread and Time Dispersion Estimation for Adaptive OFDM Systems

Overview Time dispersion is one of the most important characteristics of the wireless channel. The knowledge about the time dispersion of a channel can be used for designing better systems which can adapt themselves to the changing nature of the transmission medium. In this paper, algorithms for estimating the time dispersion (frequency selectivity) of the channel, which use the frequency domain channel estimates or the frequency domain received signal, are proposed. The proposed algorithms first estimate the Power Delay Profile (PDP) from which the two important dispersion parameters, namely Root-Mean-Squared (RMS) delay spread and maximum excess delay of the channel, are estimated.

Further White Paper Details
Publisher	University of South Florida	File Format	PDF
Date Published	January 2006
Format	White Papers
Topics	Wireless LAN, Software Engineering, Mobile - Wireless Communications

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