| Presentation | 2014-03-03 Frame Collision Detection System for Wireless LAN and its Performance Evaluation Peng SHAO, Akira MATSUMOTO, Yuki BABA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the increase of wireless local area networks (WLAN) using the IEEE 802.11 protocol, the interference between WLAN devices has become a significant problem. Access control in IEEE 802.11 is based on Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA). However CSMA/CA cannot avoid interference completely because it is possible for different devices to initiate transmissions simultaneously after Clear Channel Assessment (CCA), and because there may be interference from transmissions that are too weak to be detected by the CCA. Moreover, because the IEEE 802.11 has no function to distinguish the reason for transmission failure, appropriate counter-measures cannot be taken. In order to alleviate these problems, a method was proposed for collision detection by transmitting stations in wireless LAN, based on analysis of power signals of test frames. In this paper, we propose a novel collision detection system, expanding the collision detection targets from the test frames to the normal data frames, which can detect frame collisions under variable conditions of frame transmission power, frame sizes and frame transmission rates. Performance of the proposed method was evaluated using collision signals obtained in experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless LAN / CSMA/CA / Collision Detection / Collision Rate / Cognitive Radio |
| Paper # | RCS2013-315 |
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| Committee | RCS |
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| Conference Date | 2014/2/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Frame Collision Detection System for Wireless LAN and its Performance Evaluation |
| Sub Title (in English) | |
| Keyword(1) | Wireless LAN |
| Keyword(2) | CSMA/CA |
| Keyword(3) | Collision Detection |
| Keyword(4) | Collision Rate |
| Keyword(5) | Cognitive Radio |
| 1st Author's Name | Peng SHAO |
| 1st Author's Affiliation | NCOS Laboratory, NEC Communication Systems, Ltd.() |
| 2nd Author's Name | Akira MATSUMOTO |
| 2nd Author's Affiliation | NCOS Laboratory, NEC Communication Systems, Ltd. |
| 3rd Author's Name | Yuki BABA |
| 3rd Author's Affiliation | NCOS Laboratory, NEC Communication Systems, Ltd. |
| Date | 2014-03-03 |
| Paper # | RCS2013-315 |
| Volume (vol) | vol.113 |
| Number (no) | 456 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |