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Battery durability is often the major constraint in low power wireless sensor networks. Hence in most low power scheduling methods, nodes switch between the active mode and sleep mode periodically. This paper proposes an energy efficient data transmission scheduling for each node in a multi-channel multi-hop, data aggregation network. The proposed method reduces the active energy by scheduling each...
The wireless sensor network discussed in this article is one with Web interface based on radio frequency connection, information-driven star topology and energy-saved mode are used, the energy of each sensor node is reduced and secure management of each sensor node is improved.
We herein propose an energy-efficient protocol for data collection in a large-scale wireless sensor network (WSN), called Broadcast and Collect (B&C), which broadcasts predicted sensor information and collects actual sensor information that differs significantly from that predicted based on past sensor information. The B&C method collects sensor information from large numbers of wireless sensor...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Wireless sensor networks consist of a large number sensors spread across a given geographical area. Each sensor has its own communication capability as well as certain level of intelligence for signal processing and networking. As the sensor nodes are densely populated, communication range requirement for these nodes is smaller. After signal detection, a number of sensor nodes communicate over the...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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