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| Presentation | 2010-01-22 13:25 On the Coexistence of Cognitive Radio Systems Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada (NICT)  SR2009-87 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we study the coexistence issue of cognitive radio system (CRS) including selfcoexistence among secondary users (SUs) and the coexistence between primay users (PUs) and SUs. The selfcoexistence addresses the sharing of identified spectrum opportunity among SUs. The coexistence between SUs and PUs addresses the interference from SUs to PUs. To parameterize these issues, we first introduce a new parameter named as quality of coexistence (QoC), which is defined as the quality of SU transmission devided by the negative interference to PUs. Assuming the a time slot of spectrum opportunity has been found by multiple SUs, we partition this time slot to multiple SUs to maximize the QoC. This leads to a good spectrum usage among SUs and minimized interference to PUs. It is assumed that the SUs have multiple antennas and employ transmit power control (TPC). Numerical study shows that using the proposed method, the spectrum opportunity can be shared among multiple SUs while giving the minimum interference to the primary users (PUs). Results show that by properly allocation time slots to multiple SUs to share the spectrum opportunity, the QoC facotor can be increased by more than 20% which indicates a significant improvement of coexistence not only between SUs and PUs but also among SUs. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Cognitive radio / coexistence / coexistence manager / dynamic spectrum access / quality of coexistence (QoC) / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 383, SR2009-87, pp. 87-91, Jan. 2010. | |
| Paper # | SR2009-87 | |
| Date of Issue | 2010-01-14 (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 | SR2009-87 |
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| Conference Information | |
| Committee | SR |
| Conference Date | 2010-01-21 - 2010-01-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Cognitive network and international workshop |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2010-01-SR |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On the Coexistence of Cognitive Radio Systems |
| Sub Title (in English) | |
| Keyword(1) | Cognitive radio |
| Keyword(2) | coexistence |
| Keyword(3) | coexistence manager |
| Keyword(4) | dynamic spectrum access |
| Keyword(5) | quality of coexistence (QoC) |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Chen Sun |
| 1st Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 2nd Author's Name | Yohannes D. Alemseged |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 3rd Author's Name | Ha Nguyen Tran |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 4th Author's Name | Hiroshi Harada |
| 4th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | Author-1 |
| Date Time | 2010-01-22 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2009-87 |
| Volume (vol) | vol.109 |
| Number (no) | no.383 |
| Page | pp.87-91 |
| #Pages | 5 |
| Date of Issue | 2010-01-14 (SR) |
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