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Wireless communication network is the important step of power distribution automation. Its performance has related to the degree of the realization of distribution automatic business. In this paper, random channel access method of power distribution wireless communication network is put forward in order to optimize the performance of 230MHz power distribution wireless communication network and improve...
Wireless Sensor Network (WSN) is not completely autonomous and wire free, as Full Functional Devices (FFD), that are part of the network, require continuous power source (AC mains). The main aim of this paper is to make WSN completely wire free, fully autonomous and self sustainable system. This paper analyzes the feasibility of removing the power line (wired) connection for FFD of WSN. Theoretical...
Reducing energy consumption over mobile networks and devices is an important and challenging issue. On the one hand, power is a limited resource on mobile devices and its usage should be optimized. On the other hand, energy consumption constitutes an important item within operating expenditure (OPEX) for network providers. In the literature, many studies are dedicated to evaluate scheduling mechanisms...
A contactless energy transmitter/receiver set is designed and its electrical parameters are tested varying the working frequency in the kHz range and the transceiver's distance. The goal is to improve the efficiency of the wireless charging of different batteries from the smart grid, guaranteeing more acceptable use of the electric vehicles.
The paper discuses an important construction aspects of resonant wireless power transfer (WPT) system for small portable devices. It focuses mainly on key electrical parameters of the systems resonant linkage and its proper construction shape. All presented theoretical presumptions are consequently verified by detailed measurement.
We investigated an optimization condition for a maximum power transmission between coils wirelessly. Due to the resonant coupling nature of the system, for the highest power transmission, there is an optimum distance between the power (receiving) coil and sending (load) coil for a fixed distance between the sending coil and receiving coil. This effect cannot be explained by a conventional magnetic...
Received power measurements at spatially distributed, passive, monitors contain valuable information on the active wireless transmitters, which can be usefully exploited to make various inferences. In this paper, we study blind estimation of the number of active wireless sources, their transmission powers and their locations in the network based on received power measurements at multiple monitoring...
In this paper, we present optimization tasks of the spectral and power efficiency of the m-ary channels' in wireless and mobile networks. The invariant efficiency criterions based on the m-ary digital channel's Shannon capacity are introduced. Two invariant fundamental resources efficiency optimums are investigated: first - the maximum spectral efficiency in bit-per-second-per-Hertz, and seconds -...
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