| Presentation | 2015-03-05 Novel Coexistence Scheme between WLAN and RoF-based WLAN Kaito FUNABIKI, Takayuki NISHIO, Masahiro MORIKURA, Koji YAMAMOTO, Daisuke MURAYAMA, Takatoshi SUGIYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To facilitate management of a wireless local area network (WLAN) system, the WLAN system with radio-over-fiber (RoF) is one of the promising systems. In the system, access points (APs) are replaced by radio-frequency (RF) units. Each unit consists of an antenna, amplifiers, analog-to-digital (AD)/digital-to-analog (DA) converters, and an interface circuit. The residual physical (PHY) and media-access-control (MAC) functions of the existing APs are moved to the central office's facility which is connected to the RF unit with the optical fibers. This system causes large propagation delay between stations and an AP, thus frame collisions occurs frequently in a conventional MAC protocol. In particular, when a legacy WLAN coexists with the RoF based WLAN, the throughput performance of an AP in the RoF based WLAN decreases largely. To solve this problem, we propose a method to increase the transmission opportunity where the RoF AP can transmit frames without collisions. The simulation results show that the proposed method increases TCP throughput and MAC layer fairness between uplink and downlink transmissions in the RoF based WLAN. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | propagation delay / radio-over-fiber / long-distance communication / coexistence / RTS/CTS access |
| Paper # | SRW2014-50 |
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| Conference Information | |
| Committee | SRW |
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| Conference Date | 2015/2/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Short Range Wireless Communications(SRW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Novel Coexistence Scheme between WLAN and RoF-based WLAN |
| Sub Title (in English) | |
| Keyword(1) | propagation delay |
| Keyword(2) | radio-over-fiber |
| Keyword(3) | long-distance communication |
| Keyword(4) | coexistence |
| Keyword(5) | RTS/CTS access |
| 1st Author's Name | Kaito FUNABIKI |
| 1st Author's Affiliation | Faculty of Engineering, Kyoto University() |
| 2nd Author's Name | Takayuki NISHIO |
| 2nd Author's Affiliation | Graduate School of Informatics, Kyoto University |
| 3rd Author's Name | Masahiro MORIKURA |
| 3rd Author's Affiliation | Graduate School of Informatics, Kyoto University |
| 4th Author's Name | Koji YAMAMOTO |
| 4th Author's Affiliation | Graduate School of Informatics, Kyoto University |
| 5th Author's Name | Daisuke MURAYAMA |
| 5th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 6th Author's Name | Takatoshi SUGIYAMA |
| 6th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| Date | 2015-03-05 |
| Paper # | SRW2014-50 |
| Volume (vol) | vol.114 |
| Number (no) | 492 |
| Page | pp.pp.- |
| #Pages | 6 |
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