| Presentation | 2008-03-06 Terminal-driven Coverage Area Detection with Low Power Consumption Haruki IZUMIKAWA, Yoji KISHI, Riichiro NAGAREDA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It is necessary to select an appropriate access network out of the several available when a multi-mode terminal is used. It is also important to perform switchover of the access system, i.e. a vertical handover, according to location. For example, we have a dual-mode terminal which can connect to both wireless LAN (WLAN) and cellular networks, featuring a high transmission rate and wide coverage area, respectively. Using such a terminal, we can enjoy WLAN indoors and cellular outdoors; maintaining a session to perform the vertical handover. Before selecting and switching access networks however, it is necessary to detect the coverage area of the access networks to be connected, for which a reduction in power consumption is required in view of the battery-powered mobile terminal. In addition, it is desirable to avoid changes to existing networks because this would have a significant cost impact on many networks that have already been deployed. In this paper, the authors propose a terminal-driven coverage area detection method with low power consumption. The method deduces a movement from an outdoor cellular coverage area into an indoor space, where the WLAN coverage area mainly exists by monitoring the transition of the signal quality of a cellular system. Furthermore, the authors also introduce the method of ascertaining the deduction by leveraging the GPS signal. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Coverage area detection / Multi-mode terminal / Wireless LAN |
| Paper # | NS2007-130 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2008/2/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| 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) | Terminal-driven Coverage Area Detection with Low Power Consumption |
| Sub Title (in English) | |
| Keyword(1) | Coverage area detection |
| Keyword(2) | Multi-mode terminal |
| Keyword(3) | Wireless LAN |
| 1st Author's Name | Haruki IZUMIKAWA |
| 1st Author's Affiliation | KDDI R&D Laboratories, Inc.() |
| 2nd Author's Name | Yoji KISHI |
| 2nd Author's Affiliation | KDDI R&D Laboratories, Inc. |
| 3rd Author's Name | Riichiro NAGAREDA |
| 3rd Author's Affiliation | KDDI R&D Laboratories, Inc. |
| Date | 2008-03-06 |
| Paper # | NS2007-130 |
| Volume (vol) | vol.107 |
| Number (no) | 524 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |