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In recent years, wireless sensor networks (WSNs) have been widely used in many real-life scenarios, and have become more and more important. However, in some harsh environments, sensor nodes may suffer from a large scale damage that causes the network to get partitioned into multiple disjoint segments. How to connect these segments (in WSNs) is very important. In addition, the higher the connectivity...
Obtaining hundreds of sensor nodes to experiment new algorithms on Wireless Sensor Network (WSN) in real testbed is costly and time consuming. Simulation environment can reduce these costs though it may not produce exactly same results as real testbeds. There is many kind of simulations available for WSN such as Cooja and Tossim. None of these simulation environments provides an all-in-one solution...
Wireless Sensor Networks are by nature deployed over an undetermined geographical area with uncountable number of nodes, which makes them best studied through simulation. Due to special characteristics of these networks a number of simulation tools have been introduced by institutes and individuals each with different mechanisms and approaches. Hence, selecting a proper simulator based on the network...
In wireless sensor networks (WSNs), sensor nodes are typically subjected to energy constraints and often prone to topology changes. While duty cycling has been widely used for energy conservation in WSNs, random walks have been popular for many delay-tolerant applications in WSNs due to their many inherent desirable properties. In this paper, we consider an opportunistic forwarding under an asynchronous...
Sensor networks specifications are highly dependent on the application defined for the network. Some networks need full coverage while others can fulfill their goal with a partial coverage. Therefore it is important to have an algorithm which can satisfy full range of requirements as a universal solution. Thus a new pre-specified coverage method has been introduced which can be applied in very vast...
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