Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2007-07-27 10:10
A Propagation Status Monitoring using the Software Radio -- for Cognitive Radio --
Takashi Fujimoto, Kanshiro Kashiki, Mitsuo Nohara (KDDI R&D Laboratories), Takashi Matsumura (Toyota Info Technology Center) SR2007-36
Abstract (in Japanese) (See Japanese page) 
(in English) Authors have been studying the Cognitive Radio which selects and utilizes the optimum schemes such as the frequency band and modulation method, by appropriately having the knowledge of the encountered radio environments. As one of research activities, we have developed the Software Defined Radio (SDR) equipment which is composed of the multi communication schemes (wireless LAN and WiMAX) onboard the single FPGA platform. Furthermore, as described in this paper, we have tried to manufacture the equipment which has the capability to monitor the amplitude and phase spectra of the propagation path, by using the functionality of the SDR. By using the equipment, we evaluated its performance and depict the results of the propagation monitoring.
As for the propagation path, we assume firstly the two-wave model (direct plus reflected waves). The two-wave model is the typical one which represents the LOS (Line Of Sight）model. For LOS model, we obtain the basic performance characteristics for such model and study the numerical evaluation method. The measurement is also carried out for the model of NLOS (Non Line Of Sight). Using these measured data, we will investigate the estimation method of the propagation status.
The manufactured equipment has the feature which is easily possible to monitor the characteristics, which would have to use the high performance measurement instrument and highly trained measurement technique, so far.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive radio / Software defined radio / Propagation status monitoring / Power/phase spectra / two-wave model / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 162, SR2007-36, pp. 97-102, July 2007.
Paper # SR2007-36 
Date of Issue 2007-07-19 (SR) 
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 SR2007-36

Conference Information
Committee SR  
Conference Date 2007-07-26 - 2007-07-27 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SR 
Conference Code 2007-07-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Propagation Status Monitoring using the Software Radio 
Sub Title (in English) for Cognitive Radio 
Keyword(1) Cognitive radio  
Keyword(2) Software defined radio  
Keyword(3) Propagation status monitoring  
Keyword(4) Power/phase spectra  
Keyword(5) two-wave model  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takashi Fujimoto  
1st Author's Affiliation KDDI R&D Laboratories Inc. (KDDI R&D Laboratories)
2nd Author's Name Kanshiro Kashiki  
2nd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI R&D Laboratories)
3rd Author's Name Mitsuo Nohara  
3rd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI R&D Laboratories)
4th Author's Name Takashi Matsumura  
4th Author's Affiliation Toyota Info Technology Center, Co.,Ltd. (Toyota Info Technology Center)
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2007-07-27 10:10:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2007-36 
Volume (vol) vol.107 
Number (no) no.162 
Page pp.97-102 
#Pages 6 
Date of Issue 2007-07-19 (SR) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan