SDStorage: A Software Defined Storage Experimental Framework
With the rapid growth of data centers and the unprecedented increase in storage demands, the traditional storage control techniques are considered unsuitable to deal with this large volume of data in an efficient manner. The Software Defined Storage (SDStore) comes as a solution for this issue by abstracting the storage control operations from the storage […]
Comparison of heterogeneous network rain fade simulation tools: global integrated network SIMulator and MultiEXCELL
Two heterogeneous network simulation tools are compared and tested against measured data from terrestrial and Earth-space microwave links. Both global integrated network SIMulator (GINSIM) and MultiEXCELL are able to produce joint distributions of rain fade time-series for arbitrary networks of microwave telecommunications links. The tools are fundamentally different in that GINSIM has, as its input, time-series of composite rain rate maps produced […]
High gain Microstrip Antenna design for 2.4GHz WLAN application
IEEE 802.11x standard widely used in wireless local area network systems is called Wi-Fi as well. In this study high gain Microstrip Antenna (MA) design is presented for 2.4 GHz WLAN application. Simulations were made on parameters such as the geometry and size of antennas, type of dielectric material, the thickness of substrate for most appropriate designing […]
Impact of realistic simulation on the evaluation of mobileAd-hoc routing protocols
Today’s advanced simulators facilitate thorough studies on Vehicular Ad-hoc NETworks (VANETs). However the choice of the physical layer and the mobility models in such simulators is a crucial issue that greatly impacts the results. Realistic simulation of routing protocols in VANETs is still an open question. Indeed, only a few works address routing protocols comparison performed under realistic conditions. This paper […]
Development of Real Time Protective Coordination Algorithm for HTS Power Cable
The electrical characteristics of the HTS power cable are dominantly dependent on the property of the HTS wire and cable geometry such as wire twist pitch, cable diameter, gap between the layers, etc. The quench occurs in HTS power cable caused by fault, the resistance appears, the current redistributed, the line impedance between the source […]
Reliable virtual sensing for wireless sensor networks
Several “energy-hungry” sensors such as gas detectors, radar, and cameras have excessive energy dissipation. Virtual sensing is a technique which “breaks the downward spiral” between energy expenditure and events-miss probabilities. The idea is to deactivate main sensors and utilize a set of energy-friendly HW & SW components instead. However, reliability of such systems composed of […]
A Multiple Train Trajectory Optimization to Minimize Energy Consumption and Delay
In railway operations, if the journey of a preceding train is disturbed, the service interval between it and the following trains may fall below the minimum line headway distance. If this occurs, train interactions will happen, which will result in extra energy usage, knock-on delays, and penalties for the operators. This paper describes a train […]
Real-Time Optimal Voltage Regulation for Distribution Networks Incorporating High Penetration of PEVs
This paper proposes a vehicle-to-grid reactive power support (V2GQ) strategy for optimal coordinated voltage regulation in distribution networks with high distributed generation (DG) penetration. The proposed algorithm employs plug-in electric vehicles (PEVs), DG, and on-load tap changer (OLTC) to satisfy PEV charging demand and grid voltage requirements with relaxed tap operation, and minimum DG active power curtailment. […]
Voltage control algorithm for distribution systems with distributed generation
This paper proposes an automatic voltage control method for distribution networks using distributed generators connected to the grid in order to maintain voltage levels and to provide reactive power. This method consists in exchanging information withn a two-layer hierarchical control structure. The first one is the local control, responsible for monitoring each generator operating conditions. The second […]
Cyber Security and Operational Reliability
This paper presents a new proposed infrastructure that enables simultaneous cyber security and operational security. The basis of the method is command interception and fast authentication from the cyber security point of view (reliable detection of cyber intrusions) and from the operational reliability point of view. To simplify the process, the command authentication is done […]
