Software Defined Networks based Smart Grid Communication: A Comprehensive Survey

The current power grid is no longer a feasible solution due to ever-increasing user demand of electricity, old infrastructure, and reliability issues and thus require transformation to a better grid a.k.a., smart grid (SG). The key features that distinguish SG from the conventional electrical power grid are its capability to perform two-way communication, demand side management, and real time pricing. Despite all these advantages that SG will bring, there are certain issues which are specific to SG communication system. For instance, network management of current SG systems is complex, time consuming, and done manually. Moreover, SG communication (SGC) system is built on different vendor specific devices and protocols. Therefore, the current SG systems are not protocol independent, thus leading to interoperability issue. Software defined network (SDN) has been proposed to monitor and manage the communication networks globally. This article serves as a comprehensive survey on SDN-based SGC. In this article, we first discuss taxonomy of advantages of SDNbased SGC.We then discuss SDN-based SGC architectures, along with case studies. Our article provides an in-depth discussion on routing schemes for SDN-based SGC. We also provide detailed survey of security and privacy schemes applied to SDN-based SGC. We furthermore present challenges, open issues, and future research directions related to SDN-based SGC.Comment: Accepte

A Design Case: Assessing the Functional Needs for a Multi-faceted Cybersecurity Learning Space

Following a multi-year effort that developed not only a detailed list of functional requirements but also the preliminary physical and logical design layouts, the concept for a multi-faceted cybersecurity center was approved and the physical, as well as, additional infrastructure space was subsequently allocated. This effort briefly describes the structure and scope of the current cybersecurity program being supported and then draws out the functional requirements that were identified for the center based on the needs of the institution’s cybersecurity program. It also highlights the physical and logical design specifications of the center, as well as, the many external program delivery requirements that were identified as essential to not only the current cybersecurity program but also the projected future needs of the program and its supporting activities

Best of Both Worlds: The Inclusion of Gamification in Virtual Lab Environments to Increase Educational Value

Previous research investigating gamification and virtual laboratories has suggested that both are successful in educational outcomes, but few have looked at both gamification and virtual labs in tandem. This research explores the idea of investigating both contexts within one unified platform. We examine whether using gamification within virtual labs is effective in enhancing learners’ educational performance. Particularly, we employ leaderboards as a motivational gamification mechanism for more engagement and participation that can result in higher learning outcomes. Using a sample of students, our results show that utilization of gamification within a virtual lab environment causes students to exhibit higher performance in terms of more task accomplishments (specifically more complex tasks) and higher self-efficacy. The current findings show promising evidence on the positive influence of gamification within virtual lab learning environments

An Investigation on a Mobile Robot in a ROS Enabled Cloud Robotics Environment

In modern day robotic applications, the use of cloud computing is being considered as a viable option giving rise to development of cloud robotics environment. Robots are also being developed to operate under an organized framework of robot operating system (ROS) for flexibility and better integration with robots of different types. In this work, an investigation is presented on the development of a mobile robotic platform and its integration in a ROS enabled cloud robotics environment. A mobile robotic platform was built with different sensors including a depth camera, integrated with Arduino and raspberry pi for interfacing the sensors, the drive system and on-board local processing of signals and with wireless communication capability for transmission and receiving data. The robot was operated using ROS framework within a cloud robotics network. Two issues of robot operation in ROS enabled cloud environment, namely, latency and data integrity were investigated for the developed robot under different operating conditions. The system was tested for baseline connectivity and under low bandwidth environment and performance was found to be satisfactory in the areas of latency and data integrity. Ongoing and future extensions are proposed to integrate this current robot with other existing robots within the ROS enabled cloud robotics environment

Overview of modern teaching equipment that supports distant learning

Laboratory is a key element of engineering and applied sciences educational systems. With the development of Internet and connecting IT technologies, the appearance of remote laboratories was inevitable. Virtual laboratories are also available; they place the experiment in a simulated environment. However, this writing focuses on remote experiments not virtual ones. From the students’ point of view, it is a great help not only for those enrolling in distant or online courses but also for those studying in a more traditional way. With the spread of smart, portable devices capable of connection to the internet, students can expand or restructure time spent on studying. This is a huge help to them and also allows them to individually divide their time up, to learn how to self-study. This independent approach can prepare them for working environments. It offers flexibility and convenience to the students. From the universities’ point of view, it helps reduce maintenance costs and universities can share experiments which also helps the not so well-resourced educational facilities

Mitigating Interference During Virtual Machine Live Migration through Storage Offloading

Today\u27s cloud landscape has evolved computing infrastructure into a dynamic, high utilization, service-oriented paradigm. This shift has enabled the commoditization of large-scale storage and distributed computation, allowing engineers to tackle previously untenable problems without large upfront investment. A key enabler of flexibility in the cloud is the ability to transfer running virtual machines across subnets or even datacenters using live migration. However, live migration can be a costly process, one that has the potential to interfere with other applications not involved with the migration. This work investigates storage interference through experimentation with real-world systems and well-established benchmarks. In order to address migration interference in general, a buffering technique is presented that offloads the migration\u27s read, eliminating interference in the majority of scenarios

2016-2017 Lindenwood University Accelerated Degree Program Course Catalog

Lindenwood University Accelerated Degree Program Course Cataloghttps://digitalcommons.lindenwood.edu/catalogs/1178/thumbnail.jp

Inclusion of Gamification Elements in the Context of Virtual Lab Environments to Increase Educational Value

Previous research on gamification and virtual laboratories has suggested that both produce successful educational outcomes, but few studies have looked at both gamification and virtual labs in tandem. Drawing on social cognitive theory, we investigate gamification in the virtual labs’ context to examine whether learners’ educational performance is enhanced. In particular, we employ leaderboards as a motivational gamification mechanism for more engagement and participation that can result in higher learning outcomes. Using a student sample, our results show that using gamification within a virtual lab environment results in higher student performance; specifically, it helps them complete more-complex tasks and increases their self-efficacy. Our findings show promising evidence that gamification in virtual lab learning environments positively influences learning