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Wireless sensor network is one of the effective tools for data gathering in a variety of environments which has a lot of challenges. Controlling the congestion is one of the challenges that primarily depends on the way the large number of sensors in a network are organized and controlled. A group of nodes is called a cluster which sends information to the gateway through the cluster head. This structure...
Most of the indoor wireless sensor networks need timely information from sensors during normal and specially emergency situation. Generally a sensor network is designed with sufficient capacity to meet the requirement in normal situation. The design consideration also includes the emergency situation to support up to certain level of emergency. But the emergency situation is unpredictable and difficult...
Wireless sensor networks (WSNs) have recently emerged as suitable data collection tools for both military and civil applications. In an indoor factory monitoring environment sensor relocation and/or addition are necessary with reorganization of production lines and/or starting of new production lines. Due to memory, processing, etc. constraints of the wireless nodes these addition and relocation affect...
In most of the indoor factory monitoring system sensor relocations and reorganizations are necessary with reorganization of production lines and/or starting of new production lines. These relocations and/or additions sometime make congestion in some area of the network and difficult to achieve online expansion. As a result, in the dynamic changing environment the online expansion is a challenging...
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