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Wireless mobile grids are one of the emerging grid types, which help to pool the resources of several willing and cooperative mobile devices to resolve computationally intensive tasks. These tasks are more sensitive to processor availability than are to memory or bandwidth. The mobile grids exhibit stronger challenges like mobility management of devices, providing transparent access to grid resources, handling of limited resources so that resources are shared efficiently, and monitoring of dynamically changing resources. Device resource status is affected by number of applications it is executing, amount of data it is communicating, battery level, mobility and others. In order to keep up-to-date resource's status, a continuous monitoring is needed. Such monitoring will definitely give most recent status information but increases monitoring cost. To solve this problem, we propose a Device Resource Monitoring System in Wireless Grids. Regular, Skew and Interleaved monitoring mechanisms are proposed and and analyzed. In skewed and interleaving monitoring mechanisms, different importance factors for different resources of a device are considered and accordingly assigns different relative frequencies for resource observation. The scheme monitors critical resources more frequently, maintain high degree of accuracy of status, and reduces monitoring load.
Date of Conference: 28-29 Dec. 2009