DocumentCode
1213596
Title
Optimum pilot pattern for channel estimation in OFDM systems
Author
Choi, Ji-Woong ; Lee, Yong-Hwan
Author_Institution
Sch. of Electr. Eng. & INMC, Seoul Nat. Univ., South Korea
Volume
4
Issue
5
fYear
2005
Firstpage
2083
Lastpage
2088
Abstract
The performance of channel estimation in orthogonal frequency division multiplexing (OFDM) systems significantly depends on the pilot signal, which is usually scattered in time and frequency domains. For a given pilot density, the authors optimally design the pilot pattern so as to minimize the mean squared error (MSE) of the channel estimate with the use of a general interpolator. The analytic results are verified by computer simulation.
Keywords
OFDM modulation; channel estimation; mean square error methods; time-frequency analysis; MSE; OFDM systems; channel estimation; mean squared error; orthogonal frequency division multiplexing; time-frequency domains; Channel capacity; Channel estimation; Computer errors; Computer simulation; Delay; Fading; Frequency domain analysis; Interpolation; OFDM; Scattering; Channel estimation; orthogonal frequency division multiplexing (OFDM) system; pilot pattern;
fLanguage
English
Journal_Title
Wireless Communications, IEEE Transactions on
Publisher
ieee
ISSN
1536-1276
Type
jour
DOI
10.1109/TWC.2005.853891
Filename
1532195
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