| Presentation | 2011-03-03 New wakeup transceiver for on-demand wireless LAN Suhua TANG, Hiroyuki YOMO, Yoshihisa KONDO, Sadao OBANA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Access points (AP) of wireless LANs are widely deployed to provide mobile access to the Internet. These APs, always powered on and consuming a large amount of power in total, actually are idle during much of the time. Although previous protocol-based sleep-wakeup solutions can partially solve this problem, the large wakeup delay remains a challenge. In this paper we propose a new wakeup transceiver to greatly reduce the wakeup delay so as to realize on-demand wireless LANs. In our model, each AP is equipped with a low-power wakeup receiver and has a unique ID. All modules of an AP in the idle state, except the wakeup receiver, are put into sleep, and are woken up when a node sends a specific ID through the wakeup transceiver. In this design, the wakeup transceiver shares the antenna with wireless LAN device in the same 2.4GHz band. Besides the basic requirement of low-power consumption, there are two additional communication challenges for the wakeup transceiver: (i) how to make the wakeup signal co-exist with WLAN signals, and, (ii) how to ensure a very low false wakeup probability in a scenario where the number of WLAN signals is overwhelming. We suggest using On-Off Keying (OOK) with Manchester codes (MC) and rate constraint for (i) and exploiting the property of OOK+MC in signal recognition for (ii). The extensive simulation evaluation results confirm that the proposed scheme has good performance in both bit error rate and false wakeup probability. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | On-demand wireless LAN / power saving / wakeup receiver / co-existence / signal recognition |
| Paper # | NS2010-184 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2011/2/24(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Network Systems(NS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | New wakeup transceiver for on-demand wireless LAN |
| Sub Title (in English) | |
| Keyword(1) | On-demand wireless LAN |
| Keyword(2) | power saving |
| Keyword(3) | wakeup receiver |
| Keyword(4) | co-existence |
| Keyword(5) | signal recognition |
| 1st Author's Name | Suhua TANG |
| 1st Author's Affiliation | ATR Adaptive Communications Research Laboratories() |
| 2nd Author's Name | Hiroyuki YOMO |
| 2nd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| 3rd Author's Name | Yoshihisa KONDO |
| 3rd Author's Affiliation | ATR Adaptive Communications Research Laboratories |
| 4th Author's Name | Sadao OBANA |
| 4th Author's Affiliation | ATR Adaptive Communications Research Laboratories |
| Date | 2011-03-03 |
| Paper # | NS2010-184 |
| Volume (vol) | vol.110 |
| Number (no) | 448 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |