DocumentCode
1425393
Title
Pilot tone selection for channel estimation in a mobile OFDM system
Author
Negi, Rohit ; Cioffi, John
Author_Institution
Inf. Syst. Lab., Stanford Univ., CA, USA
Volume
44
Issue
3
fYear
1998
fDate
8/1/1998 12:00:00 AM
Firstpage
1122
Lastpage
1128
Abstract
Channel estimation for mobile OFDM systems requires transmission of pilot tones. This paper addresses the important issue of selecting these pilot tones, so as to achieve a good quality estimate. It is shown that the best set of tones to be used are those which are equally spaced. Furthermore, it is shown using the case of a first order Markov channel, that it is more efficient to use a few pilot tones in all symbols, rather than use all tones as pilot tones in some symbols
Keywords
Gaussian noise; Markov processes; frequency division multiplexing; frequency response; mobile radio; parameter estimation; telecommunication channels; white noise; AWGN; channel estimation; equally spaced tones; first order Markov channel; mobile OFDM system; orthogonal frequency division multiplexing; pilot tone selection; Blind equalizers; Channel estimation; Frequency domain analysis; Frequency estimation; Frequency response; Information systems; Laboratories; OFDM; Time-varying channels; Training data;
fLanguage
English
Journal_Title
Consumer Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0098-3063
Type
jour
DOI
10.1109/30.713244
Filename
713244
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