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A Simulation study for evaluating the communication delay and the energy consumption in a mobile cooperative environment

Author(s): Carla Diacui Medeiros Berkenbrock | Celso Massaki Hirata

Journal: Sistemas & Gestão
ISSN 1980-5160

Volume: 2;
Issue: 3;
Start page: 303;
Date: 2007;
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Keywords: Mobile groupware | Power consumption | Cache coherence

The communication between mobile devices and fixed servers is not symmetrical. Mobiledevices take longer and consume more energy when they send than when they receivemessages. Collaborative applications make intensive use of communication in order to keepthe consistency. A way to reduce not only the access time but also the energy consumptionis caching the frequently accessed data in mobile clients. However, the task to determinewhether the copy at the client's cache is consistent with the copy of the server can be anexpensive. In this paper we analyze the access time and energy consumption through a newmechanism to deal with cache coherency in a mobile cooperative environment. We conductour studies based on a simulation model.

Tango Jona
Tangokurs Rapperswil-Jona

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