Publications
Detailed Information
Design of Pilot Pattern for Channel Estimation in OFDM Systems
Cited 0 time in
Web of Science
Cited 0 time in Scopus
- Authors
- Issue Date
- 2003-04
- Citation
- 통신정보 합동학술 대회(JCCI), 2003년 4월
- Keywords
- Pilot Pattern ; OFDM
- Abstract
- Channel estimation is necessary for coherent detection in orthogonal frequency division multiplexing (OFDM) receivers. For accurate estimation, known pilot symbols are sent with data symbols at the transmitter. In general, these pilot symbols are placed with a regular pattern in two-dimensional (2-D) time-frequency grid. In a static additive Gaussian noisy channel, the channel estimation performance is known to depend not on the pilot pattern, but only on the pilot density. In time-variant frequency-selective fading channel, however, both the pilot pattern and the pilot density significantly affect the channel estimation performance. In this paper, we analytically design the pilot pattern so as to maximize the channel performance when a piecewise linear interpolation filter is used for channel estimation in data-inserted region. Finally, the analytic design is verified by computer simulations.
- Language
- English
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.