NDLI: Performance evaluation of channel estimation techniques for a mobile fourth generation wide area OFDM system

Content Provider	IEEE Xplore Digital Library
Author	Dowler, A. Doufexi, A. Nix, A.
Copyright Year	2002
Description	Author affiliation: Centre for Commun. Res., Bristol Univ., UK (Dowler, A.; Doufexi, A.; Nix, A.)
Abstract	In this paper channel estimation techniques for a mobile fourth generation coherent orthogonal frequency division multiplexing (OFDM) system are proposed. Coherent detection dictates that a per-subband estimate of the frequency response of the channel is generated for each OFDM symbol. This is achieved by inserting pilot symbols amongst the data symbols in the OFDM modulation grid. With suitable interpolation, the channel estimate at all intermediate symbols can be generated. A number of channel estimation methods with different pilot patterns and interpolation methods are examined for a range of UTRA specified channel environments. Each environment is shown to have an optimal pilot scheme, power level, pattern and density and the paper proposes the use of adaptive pilot processing.
Starting Page	2036
Ending Page	2040
File Size	432933
Page Count	5
File Format	PDF
ISBN	0780374673
ISSN	10903038
DOI	10.1109/VETECF.2002.1040576
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel estimation Interpolation Delay Frequency estimation Frequency response OFDM modulation Land mobile radio cellular systems Wideband Nonlinear distortion Wiener filter
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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