Title
On the Design of Pilot Symbols for OFDM Systems over Doubly-Selective Channels.
Abstract
We consider the pilot symbols for orthogonal frequency-division multiplexing (OFDM) over doubly selective channels. Locations, powers, and phases of pilot symbols play important roles in the channel estimation. We attempt to minimize the mean-square error (MSE) by selecting powers and phases of pilot symbols. In this paper, based on the MSE-optimal pilot symbols for time-selective and frequency-flat channels, we obtain the pilot symbols for doubly-selective channels. Through simulations, we show the channel estimation performance with the proposed pilot symbols compared to those with the equi-powered pilot symbols and the optimal pilot symbols.
Year
DOI
Venue
2011
10.1109/LCOMM.2011.100511.111594
IEEE Communications Letters
Keywords
Field
DocType
OFDM,Channel estimation,Eigenvalues and eigenfunctions,Wireless communication,Time frequency analysis,Bit error rate
Telecommunications,Wireless,Computer science,Communication channel,Electronic engineering,Real-time computing,Time–frequency analysis,Multiplexing,Orthogonal frequency-division multiplexing,Bit error rate
Journal
Volume
Issue
ISSN
15
12
1089-7798
Citations 
PageRank 
References 
2
0.39
9
Authors
3
Name
Order
Citations
PageRank
Jun-Han Oh1132.52
Jin-Goog Kim2162.56
Jong-Tae Lim347360.54