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Achieving optimal actor resources usage is one of the fundamental issues in Wireless sensor and Actor Networks (WSANs). One solution is to maximize the mutually exclusive regions (i.e., regions covered by one actor). In this paper, we take a novel approach to define and resolve the mutual exclusion problem. We propose CRMEA, (Centralized Resource-based Mutual Exclusion Algorithm), that constructs an actor cover set whose cost is less than the sole mutual exclusion algorithm existing in the literature. In addition, extensions supporting dynamic acting range and mobility are added to CRMEA. Simulation results show that the proposed extensions can save up to 50%-90% of actor resources when compared with CRMEA. In addition, the mobility extension can overcome the large event-to-action delay problem and meet the requirements of the delay-sensitive applications.
Date of Conference: 21-23 June 2010