The GLI System: A Global System Managing Geographical Location Information of Mobile Entities (Special Issue on Internet Technology)
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概要
- 論文の詳細を見る
We propose the Geographical Location Information (GLI) system that maps a mobile entity on the Internet to a geographical position. Users can look up the latest geographical location information of registered mobile entities (forward-lookup) and can also search for mobile entities within a specified area (reverse-lookup). The GLI system consists of home and area servers. The home server maintains latest geographical location information of the mobile entities and processes forward-lookup requests. The area server maintains the latest geographical location information of the mobile entities in the area that it manages and processes reverse-lookup requests. To provide a highly scalable system, home and area servers are managed in a distributed manner based on a hierarchical server structure and delegation of authority to servers that manage lower layers. To reduce the amount of traffic due to distributed management, the delegation information of authority is cached by the servers. In our performance evaluation of the GLI system, the prototype implementation can handle 4,500-8,000 requests/sec for location lookup and location registration. We found that 52 home servers and 33 area servers are enough to handle all cars in Japan under some assumed parameters through the performance evaluation.
- 社団法人電子情報通信学会の論文
- 2001-08-01
著者
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TERAOKA Fumio
Sony Computer Science Laboratories, Inc.
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Teraoka Fumio
Sony Computer Science Laboratories Inc.
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TAKEUCHI Sohgo
Sony Computer Science Laboratories, Inc.
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WATANABE Yasuhito
Graduate School of Media and Governance, Keio University
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Takeuchi Sohgo
Sony Computer Science Laboratories Inc.
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Watanabe Yasuhito
Graduate School Of Media And Governance Keio University
関連論文
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- LINA: A New Approach to Mobility Support in Wide Area Networks (Special Issue on Internet Technology)
- The GLI System: A Global System Managing Geographical Location Information of Mobile Entities (Special Issue on Internet Technology)
- Mobility Support with Authentic Firewall Traversal in IPv6 (Special Issue on Mobile Computing)