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Electrical load is centralized in city, especial in high-rise building which not only has PV generation resource but also has a gravity potential. The height in range of 30–400 meters, are everywhere in city. Water is also a necessary resource that city should have; water storage in the roof, or water body in waist, and a water tank underground of a building or a building group, is not a very difficult...
The location estimation of sensor nodes is a fundamental and essential issue for wireless sensor networks (WSNs), because the gathered data is meaningful only when the location information of the sensor nodes is known. In this paper, we proposed a novel localization algorithm. In the proposed scheme, we first estimate the location of sensor nodes using Convex Position Estimation (CPE), and then refine...
Localization is an important problem in wireless sensor networks (WSNs), since location information is widely requested in various location-dependent applications. As one of the range-free localization algorithm DV-Hop, a well known localization algorithm, can be simply implement in real WSNs. To improve the accuracy of localization, this paper proposes an improved DV-Hop algorithm. The proposed algorithm...
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