Presentation 2008-04-17
A Study on Doppler Spread Compensation Method for OFDM Receiver
Daisuke MIZUKAMI, Hiroshi YASUKAWA,
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Abstract(in English) In the high-speed mobile communication systems, the transmission characteristics of OFDM systems are degraded due to the channel time-variation caused by the Doppler spread. For the channel estimation, a pilot symbol is periodically inserted and estimated transmission channel are interpolated. However high-speed movement needs more pilot symbols to estimate the accurate channel. In this instance, the transmitting efficiency would be down. Lowering the velocity of the receiving antenna relative to the ground reduces the channel time-variation. In this paper, in order to lower the speed of the antenna relative to the ground, we propose to use a rotating concyclic antenna. We confirm that time-variation of the channel is compensated by this method without interpolation method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) OFDM / Doppler spread / channel estimation
Paper # SIP2008-14,IE2008-14
Date of Issue

Conference Information
Committee SIP
Conference Date 2008/4/10(1days)
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Paper Information
Registration To Signal Processing (SIP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Doppler Spread Compensation Method for OFDM Receiver
Sub Title (in English)
Keyword(1) OFDM
Keyword(2) Doppler spread
Keyword(3) channel estimation
1st Author's Name Daisuke MIZUKAMI
1st Author's Affiliation Gradate School of Information Science and Technology, Aichi Prefectural University()
2nd Author's Name Hiroshi YASUKAWA
2nd Author's Affiliation Gradate School of Information Science and Technology, Aichi Prefectural University
Date 2008-04-17
Paper # SIP2008-14,IE2008-14
Volume (vol) vol.108
Number (no) 3
Page pp.pp.-
#Pages 4
Date of Issue