C2AM: an algorithm for application-aware movement-assisted recovery in wireless sensor and actor networks

Authors:
Ameer Abbasi;Uthman Baroudi;Mohamed Younis;Kemal Akkaya
Affiliations:
King Fahd Univ. of Petroleum & Minerals, Dhahran, Saudi Arabia;King Fahd Univ. of Petroleum & Minerals, Dhahran, Saudi Arabia;Univ. of Maryland Baltimore County, Baltimore, MD;Southern Illinois Univ., Carbondale, IL
Venue:
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Year:
2009

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Abstract

In Wireless Sensor and Actor Networks (WSANs) a connected interactor topology is desirable in order for the deployed actors to work collaboratively. If a critical actor fails causing the inter-actor network to get partitioned into disjoint segments, the other actors close to the faulty node often exploit their mobility to autonomously restore the lost inter-actor connectivity. However, such a solution focuses on resource efficiency and assumes no constraints on the mobility of actors which can be impractical in the real scenarios. In addition, since actors need to carry out tasks to meet the application level requirements, unconstrained movement of actor(s) to restore interactor connectivity can cause a major failure at the application level. This paper presents C2AM; a recovery algorithm that factors in application level constraints on actor's mobility while restoring the network connectivity. In addition to considering physical level requirements, C2AM accounts for application level concerns as well in order to avoid major disruptions to ongoing missions. Simulation results have validated the effectiveness of the algorithm in maintaining both objectives.