Please use this identifier to cite or link to this item:
|Title:||A low-complexity and efficient channel estimator for multiband OFDM-UWB systems||Authors:||Wang, Z.
Orthogonal frequency-division multiplexing (OFDM)
|Issue Date:||Mar-2010||Citation:||Wang, Z., Xin, Y., Mathew, G., Wang, X. (2010-03). A low-complexity and efficient channel estimator for multiband OFDM-UWB systems. IEEE Transactions on Vehicular Technology 59 (3) : 1355-1366. ScholarBank@NUS Repository. https://doi.org/10.1109/TVT.2009.2038270||Abstract:||This paper proposes an efficient channel-estimation scheme for multiband (MB) orthogonal frequency-division multiplexing (OFDM)-based ultrawideband (UWB) communication systems and, more specifically, for practical implementation of low-cost, high-speed, UWB-based wireless universal serial bus (USB) devices. The proposed channel estimator consists of two stages. The first stage employs a simple least-squares (LS) method together with a frequency-domain smoothing operation that estimates the channel using the available training sequence. The second stage uses this channel estimate to detect the frame header and then refines the channel estimate by using a decision-directed technique. The mean-squared error performance and computational complexity of the proposed scheme are analyzed. Numerical examples show that the proposed scheme substantially outperforms the conventional LS approach and that it performs comparably to the maximum-likelihood estimator, under various highly noisy multipath channel conditions. © 2006 IEEE.||Source Title:||IEEE Transactions on Vehicular Technology||URI:||http://scholarbank.nus.edu.sg/handle/10635/54320||ISSN:||00189545||DOI:||10.1109/TVT.2009.2038270|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Oct 22, 2020
WEB OF SCIENCETM
checked on Oct 13, 2020
checked on Oct 24, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.