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In vehicular ad hoc networks, the basic safety message (BSM) is periodically broadcast by every vehicle on the road. By exchanging BSMs with neighbors, vehicles aggregate the collected information to get aware of driving environment and react promptly in case of any danger. The BSM dissemination is particularly crucial for vehicles at urban road intersections to avoid car collisions. However, blocking...
Cooperative communication approaches are being increasingly used to improve the reliability of Wireless Sensor Networks (WSNs) communication, allowing better spatial and temporal diversity. For the success of these techniques, a proper selection of the relay nodes is a crucial task. This paper proposes a new technique, named Smart, for the selection of cooperating WSN nodes according to criteria considered...
The relay protection and automation (RPA) is the essential part of the power system, which ensures the system failure-free operation. However, the inadequate attention is paid to the RPA operability problem during the electrical network reliability assessment. The study is focused on the determination of the RPA states probabilities with consideration of many factors characterizing the RPA ability...
Transmission and Distribution (T&D) Companies tie to several generation plants and other utilities to make an electric transmission grid. Each of the interconnection facilities is governed by the Guidelines that ensure smooth operation of the Power System. However, the Interconnection guidelines are generally limited to equipment at the Point of Interconnection (POI), therefore a thorough investigation...
This paper presents a summary and analysis deployment of a secure Intelligent Electronic Device (IED) management system at a utility in North America. The utility began their investigation into technologies and methodologies for securing their system for North America Reliability Corporation (NERC) Critical Infrastructure Protection (CIP) standards. This report is intended for anyone considering the...
Current differential protection is based on Kirchhoff s current law. Protection relays in different parts of the network analyse the vector sum of the measured currents and detect faults in the protected area as show in Figure 1. Differential definition:
The rotary type electromagnetic actuator is often used in the electromagnetic mechanical components design such as RF switch, signal electromagnetic relay, etc. Technical index of this type of actuator focus on high requirements for conversion speed, action frequency, signal reliability and the minimum volume under certain power. In this paper, a new type of rotary electromagnetic actuator with permanent...
Physical telerehabilitation services over the Internet allow physiotherapists to engage in remote consultation with patients at their homes, improving the quality of care and reducing costs. Traditional visual approaches, such as webcams and videophones, are limited in terms of precision of assessment and support for assistance with exercises. In this paper, we present a Physical Telerehabilitation...
Physical-layer security is emerging as a promising paradigm of securing wireless communications against eavesdropping, with the purpose of improving the transmission reliability of the main link. We propose a best relay selection scheme with multi-eavesdropper cooperation, and deduce the corresponding outage probability and the intercept probability. The simulation results show that he proposed scheme...
In order to solve the problem of the high outage probability and longtime service interruption during the handover process between platforms in high altitude platform stations (HAPS) communication system, the adaptive handover scheme based on cooperative transmission was proposed. The platform node, which has higher channel gain, was selected for cooperative transmission to improve the system reliability,...
In this work, we study the optimal configuration of the physical layer in wireless networks by means of Semi-Markov Decision Process (SMDP) modeling. In particular, assume the physical layer is characterized by a set of potential operating points, with each point corresponding to a rate and reliability pair; for example, these pairs might be obtained through a now-standard diversity-vs-multiplexing...
A mini-scaled pulsed power network operation is demonstrated. This scheme of smart grid was proposed in my previous papers and the basic operation was already demonstrated. In this exhibition, an advanced performance of the pulsed power network is demonstrated where electric pulses are autonomously transmitted among users according to current demands of consumers through pre-reserved transmission...
Advancement of medical science brings together new trend of proactive health care which gives rise to the era of Wireless Body Area Networks (WBAN). A number of issues including energy efficiency, reliability, optimal use of network bandwidth need to be considered for designing any multi-hop communication protocol for WBANs. Energy consumption depends on many factors like amount and frequency of forwarding...
Cooperative communication in VANET has become the de-facto in enabling technology to improve safety and efficiency on inter-vehicle communication (IVC). The safety related messages broadcast on emergency must have a minimum delay and high reliability. This paper proposes a cross-layer approach to efficiently broadcast the safety messages by minimizing the message redundancy and maintaining low end-to-end...
In order to accommodate the growing traffic demands from moving users, the next generation heterogeneous networks (HetNets) are considering the deployment of moving small cells (mSCs). mSC is a user-centric network and unlike other fixed small cells such as femto and pico cells, these mSCs use wireless backhaul links. mSC provides network services while on the move. In this paper we propose a novel...
Due to the the harsh communication environment in Vehicular communications, the current applications and standards in vehicular ad-hoc networks (VANETs) can be applied for safety-related message exchange but in the future world, the other new applications for autonomous controlled vehicles require more reliability and capacity with small delay. Therefore, this paper proposes a new database of radio...
Due to its own features including variability of network topology, instable vehicle density and so on, Vehicular Ad hoc Networks (VANETs) can hardly guarantee efficient and reliable network connectivity which plays an important role in data dissemination. Compared with VANET, cellular networks is of great advantage to provide timely data propagation. To solve the problem of disconnection in VANET,...
In following paper, firstly we have considered a 2-hop relay network in which more than one relay is accessible. And then analysis of relay selection for the decode-and-forward cooperative protocol for minimizing the outage probability over a short-term power constraint is done. Investigation of effect of power control in selecting a relay from view of capacity is done. Here an assumption is made...
This work presents relay selection and beamwidth adaptation algorithms for millimeter-wave communication network by selecting best relay. Due to the high path loss, the mm-Wave links suffer from shadowling. Thus improving link availability is a challenge for the system designer. In this work, the link availability is further improved by optimal power allocation and beamwidth adaptation. The channel...
We investigate the outage and decoding-delay performances for full-duplex (FD) decode-forward (DF) relaying with backward and sliding window decoding. In our analysis, we consider a block fading channel with full channel state information (CSI) availability at receivers and with limited CSI at transmitters. For backward decoding where the destination starts decoding from the last transmission block,...
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