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Paper Abstract and Keywords
Presentation 2010-11-12 11:00
Theoretical Study on Power Efficient MIMO Transmission and Operating Frequency Towards Green Radio
Yoshitaka Hara, Noriyuki Fukui, Hiroshi Kubo (Mitsubishi Electric) RCS2010-152
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents theoretical study on power-efficient MIMO transmission and operating frequency for green radio. It is well known that propagation loss becomes large with increase of operating frequency assuming a fixed number of antennas at both transmitter and receiver.
Since the physical size of antenna element or radio frequency (RF) circuit is proportional to wavelength for operation, a larger number of antennas can be arranged within a constant size at higher frequency. In this paper, we study relationship between required transmit power and operating frequency, assuming antenna array in a constant size. Our theoretical study reveals that the transmit power required to satisfy a certain signal quality can be reduced with increase of operating frequency assuming antenna array in a constant size. This relationship
leads to a new property that milliwave can realize more power-efficient wireless transmission than microwave. In order to use this property, implementation of high density antenna array or accurate transmit beamforming with a huge number of antennas will become key issues towards future green radio.
Keyword (in Japanese) (See Japanese page) 
(in English) Green radio / Power efficiency / Array antennas / MIMO / Carrier frequency / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 268, RCS2010-152, pp. 63-68, Nov. 2010.
Paper # RCS2010-152 
Date of Issue 2010-11-04 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2010-152

Conference Information
Committee AP RCS  
Conference Date 2010-11-10 - 2010-11-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukui Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP, RCS 
Paper Information
Registration To RCS 
Conference Code 2010-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical Study on Power Efficient MIMO Transmission and Operating Frequency Towards Green Radio 
Sub Title (in English)  
Keyword(1) Green radio  
Keyword(2) Power efficiency  
Keyword(3) Array antennas  
Keyword(4) MIMO  
Keyword(5) Carrier frequency  
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Keyword(8)  
1st Author's Name Yoshitaka Hara  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Noriyuki Fukui  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
3rd Author's Name Hiroshi Kubo  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Speaker Author-1 
Date Time 2010-11-12 11:00:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2010-152 
Volume (vol) vol.110 
Number (no) no.268 
Page pp.63-68 
#Pages 6 
Date of Issue 2010-11-04 (RCS) 

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