Preamble-aided time delay estimation in frequency selective channels for wireless OFDM systems

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 wi...

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Bibliographic Details
Published inJournal of engineering (Stevenage, England) Vol. 2014; no. 8; pp. 450 - 452
Main Authors Yu, Qun, Lin, Haisheng, Feng, Suili, Li, RongLin
Format Journal Article
LanguageEnglish
Published The Institution of Engineering and Technology 01.08.2014
Wiley
Subjects
computer simulation
cross-correlation technique
delay estimation
frequency selective channel
multipath number
OFDM modulation
preamble structure
preamble-aided orthogonal frequency division multiplexing systems
preamble-aided time delay estimation
wireless channels
wireless OFDM systems
delay estimation
preamble-aided time delay estimation
multipath number
preamble-aided orthogonal frequency division multiplexing systems
frequency selective channel
preamble structure
computer simulation
OFDM modulation
wireless channels
cross-correlation technique
wireless OFDM systems
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Summary: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.
ISSN:2051-3305
2051-3305
DOI:10.1049/joe.2014.0171