| Presentation | 2017-11-09 [Invited Lecture] Development and experimental evaluation of cooperative wireless LAN with distributed smart antenna system Koichi Ishihara, Tomoki Murakami, Hirantha Abeysekera, Mamoru Akimoto, Yasushi Takatori, Takafumi Hayashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Wireless local area network (LAN) systems have recently seen explosive growth as the prevailing smart devices anywhere. Therefore, the number of access points (APs) also increases and are densely deployed so as to afford enough connectively for wireless LAN devices. However, since the frequency resource available for wireless LAN systems is limited, APs have to share their frequency channel with some others that result in more overlapping basic service sets (OBSSs) in such a dense AP environment. As a result, the system throughput degrades due to the interference among OBSSs. In this paper, we propose a distributed smart antenna system (D-SAS) for wireless LAN, which suppresses the interference among OBSSs and improves the system throughput in high-density wireless LAN scenarios. The proposed scheme is designed to reduce the interference from other D-SAS APs. The scheme selects the best antenna set with the maximum signal power received from the station (STA) and adjusts the transmit power at the AP. We also show the prototype of wireless LAN D-SAS AP and demonstrated the system throughput of the proposed scheme with stadium experiment. It was found that the developed D-SAS AP provides twice system throughput larger than the conventional AP with centralized antennas. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cooperative wireless LAN / Distributed smart antenna system / DAS / Interference / OBSS / wireless LAN / D-SAS |
| Paper # | AP2017-129,RCS2017-234 |
| Date of Issue | 2017-11-01 (AP, RCS) |
| Conference Information | |
| Committee | AP / RCS |
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| Conference Date | 2017/11/8(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukuoka University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Jiro Hirokawa(Tokyo Tech.) / Hidekazu Murata(Kyoto Univ.) |
| Vice Chair | Ryo Yamaguchi(SoftBank) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) |
| Secretary | Ryo Yamaguchi(NTT DoCoMo) / Yukitoshi Sanada(Saitama Univ.) / Eisuke Fukuda(Toshiba) / Satoshi Suyama(Hokkaido Univ.) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) / Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Lecture] Development and experimental evaluation of cooperative wireless LAN with distributed smart antenna system |
| Sub Title (in English) | |
| Keyword(1) | Cooperative wireless LAN |
| Keyword(2) | Distributed smart antenna system |
| Keyword(3) | DAS |
| Keyword(4) | Interference |
| Keyword(5) | OBSS |
| Keyword(6) | wireless LAN |
| Keyword(7) | D-SAS |
| 1st Author's Name | Koichi Ishihara |
| 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 | Hirantha Abeysekera |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 4th Author's Name | Mamoru Akimoto |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 5th Author's Name | Yasushi Takatori |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 6th Author's Name | Takafumi Hayashi |
| 6th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2017-11-09 |
| Paper # | AP2017-129,RCS2017-234 |
| Volume (vol) | vol.117 |
| Number (no) | AP-283,RCS-284 |
| Page | pp.pp.115-118(AP), pp.171-174(RCS), |
| #Pages | 4 |
| Date of Issue | 2017-11-01 (AP, RCS) |