Preamble‐aided time delay estimation in frequency selective channels for wireless OFDM systems. Issue 8 (28th August 2014)

• Record Type: Journal Article
• Authors: Yu, Qun; Lin, Haisheng; Feng, Suili; Li, RongLin
• Is Part Of: Journal of engineering. Volume 2014:Issue 8(2014)
• Page Start: 450
• Page End: 452
• Publication Date: 2014-08-28
• Subjects: delay estimation -- OFDM modulation -- wireless channels; preamble‐aided time delay estimation -- frequency selective channel -- wireless OFDM systems -- preamble‐aided orthogonal frequency division multiplexing systems -- preamble structure -- cross‐correlation technique -- multipath number -- computer simulation; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2014.0171
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : In this Letter, an improved method for estimating the time delay in preamble‐aided orthogonal frequency division multiplexing systems is presented. It uses a conventional preamble structure and combines cross‐correlation techniques to achieve estimations of time delay and the number of multipaths without any additional overhead. Computer simulations results show that the proposed method is of near‐ideal property in frequency‐selected channels.