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The Doppler shift of fast-fading channels will generate intercarrier interference (ICI) and, hence, degrade the performance of orthogonal frequency-division multiplexing (OFDM) systems. In this paper, a novel channel-estimation and data-detection method for OFDM systems over the fast-fading dispersive channels has been proposed and investigated. A new pilot pattern is also proposed, and it is composed...
Fast fading channels will result in the inter-carrier interference (ICI) and degrade the performance of orthogonal frequency division multiplexing (OFDM) systems. In this paper, a novel pilot pattern and corresponding channel estimation and data detection method for OFDM systems with fast fading channels have been proposed and investigated. The proposed pilot pattern is composed of two classical pilot...
Doppler shift estimation has been deployed to improve the performance of orthogonal frequency division multiplexing (OFDM) systems. A novel method of Doppler shift estimation for OFDM systems in time varying and frequency selective fading channels has been proposed and investigated. The proposed method is a frequency domain scheme that utilizes pilot subcarriers, which are adopted in most practical...
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