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Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/7001

Title: Location based mobile computing - a tuplespace perspective
Authors: Fongen, A
Larsen, C
Ghinea, G
Taylor, SJE
Serif, T
Keywords: Distributed tuplespace
Location based
Context aware
J2me
Publication Date: 2006
Publisher: IOS Press
Citation: Journal of Mobile Information Systems, 2(2-3): 135 - 149, 2006
Abstract: Location based or "context aware" computing is becoming increasingly recognized as a vital part of a mobile computing environment. As a consequence, the need for location-management middleware is widely recognized and actively researched. Location-management is frequently offered to the application through a "location API" (e.g. JSR 179) where the mobile unit can find out its own location as coordinates or as "building, floor, room" values. It is then up to the application to map the coordinates into a set of localized variables, e.g. direction to the nearest bookshop or the local timezone. It is the opinion of the authors that a localization API should be more transparent and more integrated: The localized values should be handed to the application directly, and the API for doing so should be the same as the general storage mechanisms. Our proposed middleware for location and context management is built on top of Mobispace. Mobispace is a distributed tuplespace made for mobile units (J2me) where replication between local replicas takes place with a central server (over GPRS) or with other mobile units (using Bluetooth). Since a Bluetooth connection indicates physical proximity to another node, a set of stationary nodes may distribute locality information over Bluetooth connections, and this information may be retrieved through the ordinary tuplespace API. Besides the integration with the general framework for communication and coordination the middleware offers straightforward answers to questions like: Where is node X located? Which nodes are near me? What is the trace of node Y?
Description: This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2006 IOS Press
URI: http://iospress.metapress.com/content/6b623j6ldr0vvwmm/
http://bura.brunel.ac.uk/handle/2438/7001
ISSN: 1574-017X
Appears in Collections:School of Information Systems, Computing and Mathematics Research Papers
Publications
Computer Science

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