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| Paper Abstract and Keywords | ||
| Presentation | 2011-11-16 15:30 Enhancement of solution for the hidden terminal problem by using random length signals in wireless LANs Kento Yamamoto, Hiroshi Inai (Okayama Prefectural Univ.)  RCS2011-202 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The hidden terminal problem is a big problem when we use wireless networks．To solve that problem，RTS/CTS is used in IEEE 802.11．However，when offered load increases，collisions of RTS frames also increase．Increase of frame retransmissions due to collisions causes a performance degradation． In former article，we propose random length jam signals for RTS frames． The simulation results have shown the proposed scheme improves throughput in comparison with RTS/CTS． In this paper，we have add two effective functions to the former protcol． First; when a backoff expires， the terminal postpones it's transmission reservation with a certain probabillity． By this function，collisions under heavy load conditions can be dissolved． Second; an access point uses random length jam signals in substitution for reply signala． That is expected to reduce the useless time during the transmission reservation． The simulation results show that the enhancement scheme improves throughput in comparison with the former proposed protcol． |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IEEE802.11 / wireless LANs / hidden terminal problem / RTS/CTS / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 289, RCS2011-202, pp. 79-84, Nov. 2011. | |
| Paper # | RCS2011-202 | |
| Date of Issue | 2011-11-09 (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 | RCS2011-202 |
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| Conference Information | |
| Committee | AP RCS |
| Conference Date | 2011-11-16 - 2011-11-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Congress Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceller, MIMO, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2011-11-AP-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Enhancement of solution for the hidden terminal problem by using random length signals in wireless LANs |
| Sub Title (in English) | |
| Keyword(1) | IEEE802.11 |
| Keyword(2) | wireless LANs |
| Keyword(3) | hidden terminal problem |
| Keyword(4) | RTS/CTS |
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| 1st Author's Name | Kento Yamamoto |
| 1st Author's Affiliation | Okayama Prefectural University (Okayama Prefectural Univ.) |
| 2nd Author's Name | Hiroshi Inai |
| 2nd Author's Affiliation | Okayama Prefectural University (Okayama Prefectural Univ.) |
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| Speaker | Author-1 |
| Date Time | 2011-11-16 15:30:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2011-202 |
| Volume (vol) | vol.111 |
| Number (no) | no.289 |
| Page | pp.79-84 |
| #Pages | 6 |
| Date of Issue | 2011-11-09 (RCS) |
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