Presentation	1995/11/27 Adaptive Modulation System using Directive Antenna Diversity in High Mobility Land Mobile Communications Takashi SUZUKI, Seiichi SAMPEI, Norihiko MORINAGA,
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Abstract(in English)	This report proposes a directive antenna diversity reception scheme for an adaptive modulation TDMA/TDD system to achieve high quality, high bit rate and high spectral efficient data transmission even in high mobility land mobile communication environments. In the mobile station, a directive antennas diversity is applied to equivalently reduce the Doppler spread in each branch. At each branch, the offset frequency (f_) and f_-canceled fading variation are estimated to improve accuracy of the propagation path characteristics estimation even in high maximum Doppler frequency f_d environments. Computer simulation confirms that the proposed scheme can achieve successful variable rate transmission in fast fading environments.
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Keyword(in English)	Adaptive modulation system / Directive antenna diversity / Doppler spread
Paper #	RCS95-108
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Conference Information
Committee	RCS
Conference Date	1995/11/27(1days)
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Paper Information
Registration To	Radio Communication Systems (RCS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Adaptive Modulation System using Directive Antenna Diversity in High Mobility Land Mobile Communications
Sub Title (in English)
Keyword(1)	Adaptive modulation system
Keyword(2)	Directive antenna diversity
Keyword(3)	Doppler spread
1st Author's Name	Takashi SUZUKI
1st Author's Affiliation	Department of Communication Engineering, Faculty of Engineering, Osaka University()
2nd Author's Name	Seiichi SAMPEI
2nd Author's Affiliation	Department of Communication Engineering, Faculty of Engineering, Osaka University
3rd Author's Name	Norihiko MORINAGA
3rd Author's Affiliation	Department of Communication Engineering, Faculty of Engineering, Osaka University
Date	1995/11/27
Paper #	RCS95-108
Volume (vol)	vol.95
Number (no)	390
Page	pp.pp.-
#Pages	6
Date of Issue