| Presentation | 2019-02-01 Three-dimensional Cooperative Carrier Sensing for Un-Used Frequency Utilization Riku Ohmiya, Tomoki Murakami, Koichi Ishihara, Takafumi Hayashi, Takatori Yasushi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As mobile terminals such as smartphones explosively spread, mobile traffic’s volume also continues to increase. Along with this, demands for technological evolution of high-speed wireless LAN, which is mainly responsible for offloading mobile traffic, are increasing year by year. One of the studies has been extensively evaluated on cognitive radio which realizes high speed by detecting "un-used frequency" within the range not hindering the primary radio station and reusing it. In our works, we consider to apply un-used frequency reuse technology to wireless LAN in cognitive radio. In order to efficiently reuse the un-used frequency, it is necessary to perform broadband and multi-directional carrier senses, but it is difficult to perform these within a prescribed time. Therefore, in this paper, we propose a method to detect the availability of frequency channel in multiple directions with high efficiency by carrying out carrier sense based on the information and sharing the results immediately. In the proposed method, the frequency channel and the direction of the three-dimensional space at each terminal are specified from the statistical information of each frequency band and frequency utilization rate in multiple directions acquired beforehand. Moreover, computer simulation evaluations show that each transceiver is able to acquire broad bandwidth by selecting the most continuous frequency band from among the free frequency channels detected by the proposed method even when the number of wireless LAN devices increases and the influence of radio interference increases. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Un-Used Frequency Utilization / Cooperative Sensing / Cognitive Radio / Wireless LAN |
| Paper # | IT2018-57,SIP2018-87,RCS2018-264 |
| Date of Issue | 2019-01-24 (IT, SIP, RCS) |
| Conference Information | |
| Committee | RCS / SIP / IT |
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| Conference Date | 2019/1/31(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tomoaki Otsuki(Keio Univ.) / Shogo Muramatsu(Niigata Univ.) / Jun Muramatsu(NTT) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Naoyuki Aikawa(TUS) / Kazunori Hayashi(Osaka City Univ) / Tadashi Wadayama(Nagoya Inst. of Tech.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara(Takushoku Univ.) / Naoyuki Aikawa(Hiroshima Univ.) / Kazunori Hayashi(Nagano Pref Inst. of Tech.) / Tadashi Wadayama(UEC) |
| Assistant | Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Katsumi Konishi(Hosei Univ.) / hyihsin(Takushoku Univ.) / Takahiro Yoshida(Yokohama College of Commerce) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Signal Processing / Technical Committee on Information Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Three-dimensional Cooperative Carrier Sensing for Un-Used Frequency Utilization |
| Sub Title (in English) | |
| Keyword(1) | Un-Used Frequency Utilization |
| Keyword(2) | Cooperative Sensing |
| Keyword(3) | Cognitive Radio |
| Keyword(4) | Wireless LAN |
| 1st Author's Name | Riku Ohmiya |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Tomoki Murakami |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Koichi Ishihara |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 4th Author's Name | Takafumi Hayashi |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 5th Author's Name | Takatori Yasushi |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2019-02-01 |
| Paper # | IT2018-57,SIP2018-87,RCS2018-264 |
| Volume (vol) | vol.118 |
| Number (no) | IT-433,SIP-434,RCS-435 |
| Page | pp.pp.127-132(IT), pp.127-132(SIP), pp.127-132(RCS), |
| #Pages | 6 |
| Date of Issue | 2019-01-24 (IT, SIP, RCS) |