High-voltage direct current (HVDC) technology based on Line Commutated Converter (LCC) is widely used in modern power systems due to its numerous benefits. However, as a typical electronic device, LCC-HVDC has caused significant changes the dynamic behavior of largely replaced conventional supplies systems. The interactions among sending-terminal and receiving-terminal system become stronger ha...

It is common that users or hosts in a large network are partitioned and organized as a hierarchical tree where children of the same parent form a group. Secure broadcasting intends to provide a secure communication channel from a sending principal to a group of legal receiving principals. Only legal receiving principals can decrypt the message, and illegal receiving principals cannot acquire an...

One of the main objectives of the smart grid initiative is to enable bulk power transmission over long distance, with reduced transmission losses. Besides the traditional high-voltage alternating current (HVAC) transmission, with the advancement in power electronics, high-voltage direct current (HVDC) transmission is increasingly becoming important. One of the main factors impacting the transmi...

This article presents an analysis of the performance two protocols supported by queuing systems, i.e. MQTT and AMQP. was performed using message brokers - ActiveMQ RabbitMQ. The time sending analyzed, determined on basis receiving for both in above-mentioned systems. tests were carried out proprietary applications written Java Spring application framework.

Wireless Powered Mobile Edge Computing (WPMEC) is an integration of (MEC) and Power Transfer (WPT) technologies, to both improve computing capabilities mobile devices energy compensation for their limited battery capabilities. Generally, transmitters, devices, edge servers form a WPMEC system that realizes closed loop sending collecting as well offloading receiving task data. Due constraints ti...

This paper reports a new and accurate method for load flow solution of radial distribution networks with minimum data preparation. The node and branch numbering need not to be sequential like other available methods. The proposed method does not need sending node, receiving node and branch numbers if these are sequential. The proposed method uses the simple equation to compute the voltage magni...

In this paper, the results and analysis of the measured data for multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) channels in indoor environment, in presence of pedestrian, are reported. The experiment used 4 sending and 4 receiving antennas and 114 OFDM sub-carriers for each transmission. The mean channel capacity and the dynamic range of the received power...

The goal of this research is to design a wireless communication system for sending and receiving data from distributed sensor networks, or Smart Dust systems. The devices for communication on the dust motes are subject to size and power constraints, and are required to communicate over several hundred meters at a minimum data rate of 1 kbps. Optical links with active and passive transmitters an...

Networking and power management of wireless energy conscious sensor networks is an important area of current research and considering the competitive constraints on the global energy market it will even gain importance. We investigate in the present work a network of MicaZ sensor motes using the Zigbee protocol for communication, and provide a model using Timed Safety Automata. The TA model wil...