16,473 research outputs found
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
Recent advances in industrial wireless sensor networks towards efficient management in IoT
With the accelerated development of Internet-of- Things (IoT), wireless sensor networks (WSN) are gaining importance in the continued advancement of information and communication technologies, and have been connected and integrated with Internet in vast industrial applications. However, given the fact that most wireless sensor devices are resource constrained and operate on batteries, the communication overhead and power consumption are therefore important issues for wireless sensor networks design. In order to efficiently manage these wireless sensor devices in a unified manner, the industrial authorities should be able to provide a network infrastructure supporting various WSN applications and services that facilitate the management of sensor-equipped real-world entities. This paper presents an overview of industrial ecosystem, technical architecture, industrial device management standards and our latest research activity in developing a WSN management system. The key approach to enable efficient and reliable management of WSN within such an infrastructure is a cross layer design of lightweight and cloud-based RESTful web service
Performance Analysis of Discrete Wavelet Multitone Transceiver for Narrowband PLC in Smart Grid
Smart Grid is an abstract idea, which involves the utilization of powerlines for sensing, measurement, control and communication for efficient utilization and distribution of energy, as well as automation of meter reading, load management and capillary control of Green Energy resources connected to the grid. Powerline Communication (PLC) has assumed a new role in the Smart Grid scenario, adopting the narrowband PLC (NB-PLC) for a low cost and low data rate communication for applications such as, automatic meter reading, dynamic management of load, etc. In this paper, we have proposed and simulated a discrete wavelet multitone (DWMT) transceiver in the presence of impulse noise for the NB-PLC channel applications in Smart Grid. The simulation results show that a DWMT transceiver outperforms a DFT-DMT with reference to the bit error rate (BER) performance
Sustainable Development Report: Blockchain, the Web3 & the SDGs
This is an output paper of the applied research that was conducted between July 2018 - October 2019 funded by the Austrian Development Agency (ADA) and conducted by the Research Institute for Cryptoeconomics at the Vienna University of Economics and Business and RCE Vienna (Regional Centre of Expertise on Education for Sustainable Development).Series: Working Paper Series / Institute for Cryptoeconomics / Interdisciplinary Researc
Sustainable Development Report: Blockchain, the Web3 & the SDGs
This is an output paper of the applied research that was conducted between July 2018 - October 2019 funded by the Austrian Development Agency (ADA) and conducted by the Research Institute for Cryptoeconomics at the Vienna University of Economics and Business and RCE Vienna (Regional Centre of Expertise on Education for Sustainable Development).Series: Working Paper Series / Institute for Cryptoeconomics / Interdisciplinary Researc
Communications for smart grid substation monitoring using WIMAX protocol
The SMARTGRID is a general term for a series of infrastructural changes applied to the
electric transmission and distribution systems. By using the latest communication and
computing technology, additional options such as Condition Monitoring can now be
implemented to further improve and optimise complex electricity supply grid operation.
Lifecycle optimisation of high voltage assets and other system components in the utility
provide a case in point. Today Utility experts agree that application of scheduled
maintenance is not the effective use of resources. To reduce maintenance expenses and
unnecessary outages and repairs of equipment due to scheduled maintenance, utilities are
adopting condition based approaches. Real time online monitoring of substation
parameters can be achieved by retrofitting the existing substation with SMARTGRID
technology. The IEC 61850 is a common protocol meant for Substation Automation
Systems, designed for the purpose of establishing interoperability, one that all
manufacturers of all different assets must comply with. This thesis advocates the estimation
of bandwidth required for monitoring a substation after retrofitting the existing substation
with smart communication technologies. This includes establishing a latest wireless
communication infrastructure from the substation to the control centre and evaluating the
performance modelling and simulating the physical layer of communication technologies
such as WIMAX (IEEE802.16) and MICROWAVE point to point using MATLAB
SIMULINK and RADIO mobile online simulation software. Also, link budget of the
satellite communication for the same application is calculated. Satellite communication in
this case is considered as a redundant or back up technology to ensure that the
communication between entities is continuous. On performing the simulation on different
environments the results prove that the selected protocols are best suited for condition
monitoring. The measured Latency could be the best approximated value which complies
with the current objective. However the white noise that exists in the substation has
significant hazard with respect to the security of the wireless network. To compensate this
constraint whole substation is hard wired by means of plastic fibre optics and the data sent
to the base station located near the substation
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