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Category Archive: LATEST NS2 PROJECTS

An Energy-efficient Nonvolatile In-memory Computing Architecture for Extreme Learning Machine by Domain-wall Nanowire Devices

The data-oriented applications have introduced increased demands on memory capacity and bandwidth, which raises the need to rethink the architecture of the current computing platforms. The logic-in-memory architecture is highly promising as future logic-memory integration paradigm for high throughput data-driven applications. From memory technology aspect, as one recently introduced non-volatile memory (NVM) device, domain-wall nanowire […]

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Leader-Following Coordination of Nonlinear Agents under Time-varying Communication Topologies

The paper deals with the problem of synchronizing the outputs of a set of nonlinear agents that exchange information through a time-varying communication network in a leaderfollower configuration. The dynamics of the individual followers may differ from each other and from that of the leader. The information exchange between the leader and (a limited fraction of) the […]

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Compact Fluorescent Lamp Modeling for Large-Scale Harmonic Penetration Studies

Low-watt compact fluorescent lamps (CFLs) may account for significant energy consumption of power distribution feeders in future years. This can lead to power-quality concerns because these devices consume highly distorted currents. In order to predict CFL harmonic current emissions into networks, CFL models capable of predicting these emissions accurately are being studied. On the other hand, […]

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Characterizing mobile user habits: The case for energy budgeting

In this paper, we collect and analyze data from 85 smartphone users over a 9 month period. Different from existing work, we study device usage patterns in concert with network performance in space and time. Our results uncover predictable mobility patterns, where users are moving between hubs (i.e., home or workplace) and transit locations. In hubs, users […]

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Teleoperation of mining equipment using Optical Wireless Communications

Penguin Automated Systems Inc. is presently evaluating the world’s first omnidirectional Optical Wireless Communications (OWC) network customized to teleoperate mobile equipment in surface, underground and underwater mining operations. Experimental results of novel technologies that made this possible are presented here: a mode programmable On-Off-Keying (OOK), Orthogonal Frequency Division Modulations (OFDM) Half-Duplex LED driver, and a single photodetector […]

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A Sensorless Adaptive Maximum Power Point Extraction Method With Voltage Feedback Control for Small Wind Turbines in Off-Grid Applications

Due to the ever growing global energy demand and pollution levels, clean and renewable alternative energy resources, such as wind, have become indispensable for preserving the planet for future generations. With wind being an unpredictable resource, it is imperative that wind systems extract as much power from the wind as possible while it is available. […]

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Security Concerns and Countermeasures in Cloud Computing Paradigm

Since the inception in 2006, cloud computing has been a hot researching area of computer networktechnology. Some giant companies are offering the cloud services now. Migrating data to the cloud remains a tempting trend from a financial perspective but there are several other aspects that must be taken into account before it is decided to do […]

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Verification of the Power and Ground Grids Under General and Hierarchical Constraints

As part of power distribution network verification, one should check if the voltage fluctuations exceed some critical threshold. The traditional simulation-based solution to this problem is intractable due to the large number of possible circuit behaviors. This approach also requires full knowledge of the details of the underlying circuitry, not allowing one to verify the power distribution network early […]

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Widely Linear Estimation for Space-Time-Coded GFDM in Low-Latency Applications

This paper presents a solution for achieving transmit diversity with Generalized Frequency Division Multiplexing (GFDM). Compared to previous works, the proposed solution significantly improves symbol error rate (SER) performance and latency, where both aspects are crucial for future 5G cellularnetworks. It is shown that widely linear estimation at the receiver side can jointly equalize and […]

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Analysis and Control of Bipolar LVDC Grid With DC Symmetrical Component Method

The dc symmetrical component method is introduced for the analysis and control of bipolar dc distribution systems under asymmetrical operation. This method is an extension of the classical symmetrical component theory in three-phase ac power systems. The asymmetrical voltage and current in the positive and negative poles are decomposed into symmetrical components in common and […]

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