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Autonomous decentralized community wireless sensor networks for online expansion

This paper discusses about resource utilization of wireless sensor network for online expansion in a food factory application. In food factory monitoring system, sensor relocations and reorganizations are necessary with reorganization of production lines and starting of new production lines. These relocations sometime make congestion in some area of the network. In this dynamic changing environment online expansion is a challenging problem for resource constrained network. This paper proposes a two-tier autonomous decentralized architecture for wireless sensor network. The first layer consists of sensors and second layer consists of routers. In the architecture routers make community (a group of nodes mutually cooperate for a common goal is a community). This paper proposes a community construction technology called request based community. The goal of this paper is to introduce the community concept in wireless sensor network for sharing of information among routers of the community to maximize the utilization of the network resources especially for the dynamic changing environment. Results show that our proposed community can efficiently utilize the resources of the sensor network for online expansion.