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Wireless sensor networks are usually densely deployed, and it is quite common for sensors to gather and transmit redundant information, which results in unnecessary energy consumption. Sleep scheduling is quite helpful for reducing overall energy consumption of the network, and thus prolongs the network lifetime. In this paper, we propose an Information Entropy Approach for Sleep Scheduling (IEASS)...
Wireless sensor hubs generally consist of three main parts, communication subsystem, processing subsystem and sensing subsystem, normally communication subsystem consume most of energy of a typical sensor node and this is as much energy that we can neglect the processing energy consumption. Energy consumption of the sensing subsystem depends on specific sensor type. Usually it's also much less than...
Wireless sensor network is gradually drawing attention in the area of smart communication system where it was found to use it either in small or large scale environment. However, small scale deployment is found to use pattern based topology like Voronoi, square, diamond, angular etc. But for real time scenario applicable in human inaccessible large scale area, sensor nodes needs to be deployed randomly...
Wireless Sensor Networks (WSNs) consume a lot of energy in infrastructure creation and maintenance which also include topology control, i.e., coverage and connectivity. Several sleep-based topology control protocols have been proposed for better performance. While the existing protocols serve their purpose, they still consume high energy. We propose an energy-efficient protocol for Coverage, Connectivity...
Topology control is the primary technique of energy saving, and energy saving is also one of the most important objectives in topology control. It consists to keep a minimum number of sensor nodes to operate in active mode with the purpose of conserving energy as well as ensure network connectivity and/or coverage. In this paper, we propose a Geographical Topology Control (GTC) Protocol to reduce...
Recent developments in wireless communication and embedded computing technologies have led to the advent of wireless sensor network technology. Hundreds of thousands of these micro sensors can be deployed in many areas including health, environment and battlefield in order to monitor the domain with desired level of accuracy. When wireless sensors are deployed in an area, the lifetime of the network...
This study investigates the graph theoretic implications of applying collaborative rate-adaptive storage and data management to enhance the reliability of connectivity-challenged sensor networks employing dynamic heterogeneity setups. The topologies of sensor networks are synthesized through a spatially-dependent probabilistic random graph model. Around this model a degree-density-connectivity-clustering...
In wireless sensor networks, the number of cluster heads and nodes has direct relation to its cost and its performance, such as robust, fault-tolerance, etc. Further more, it is considered at first as wireless sensor networks are designed. The paper simplifies complex connectivity and coverage problem step by step. By means of theoretical analysis, math modeling and geometry proving and making use...
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