• Title/Summary/Keyword: Smart Grid Network

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Comparative Analysis of Centralized Vs. Distributed Locality-based Repository over IoT-Enabled Big Data in Smart Grid Environment

  • Siddiqui, Isma Farah;Abbas, Asad;Lee, Scott Uk-Jin
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2017.01a
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    • pp.75-78
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    • 2017
  • This paper compares operational and network analysis of centralized and distributed repository for big data solutions in the IoT enabled Smart Grid environment. The comparative analysis clearly depicts that centralize repository consumes less memory consumption while distributed locality-based repository reduce network complexity issues than centralize repository in state-of-the-art Big Data Solution.

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A Cognitive Radio based for Smart Grid AMI Network using Adaptive Algorithm

  • Thapa, Prakash;Acharya, Shree Krishna;Paik, Jong-Gil;Choi, Sang-Gil;Jun, Hae-Ji;Kim, Seong-Whan;Lee, Seong Ro;Lee, Yeonwoo
    • International Journal of Internet, Broadcasting and Communication
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    • v.8 no.3
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    • pp.69-77
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    • 2016
  • Maximum utilization of unused license spectrum is one of key factor in cognitive radio network which can handle the large number of systems and devices connected on smart grid AMI network. The central intelligence control system has responsibility to accept new technologies and users for automation. To ensure a reliable communication in smart grid system through cognitive network, a minimum mean square error (MSE) signal using unused licensed spectrum (or frequency) is necessary to be detected with small decision error. In this paper, we introduce a user control wireless smart grid system with minimum MSE using LMS algorithm.

IEEE 802.11s based Wireless Mesh Networks for Smart Grid (스마트 그리드를 위한 IEEE 802.11s 기반 무선 메쉬 네트워크)

  • Jung, Ji-Sun;Kim, Jae-Beom;Ko, Young-Bae;Lee, Sang-Youm
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.9B
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    • pp.1390-1398
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    • 2010
  • We present the concept of applying Wireless Mesh Networking (WMN) technology into Smart Grid, which is recently rising as a potential technology in various areas thanks to its advantages such as low installation costs, high scalability, and high flexibility. Smart Grid is an intelligent, next-generation electrical power network that can maximize energy efficiency by monitoring utility information in real-time and controlling the flow of electricity with IT communications technology converged to the existing power grid. WMNs must be designed for Smart Grid communication systems considering not only the high level of reliability, QoS support and mass-data treatment but also the properties of the traditional power grid. In addition, it is essential to design techniques based on international standards to support interoperability and scalability. In this paper, we evaluate the performance of IEEE 802.11s based Smart Grid Mesh Networks by conducting preliminary simulation studies with the ns-3 simulator. We also outline some challenging issues that should be reviewed when considering WMNs as the candidate for Smart Grid communication infrastructure.

A Study Effective Zigbee Authentication Protocol in Smart Grid Network (스마트 그리드 네트워크에서 효과적인 Zigbee 인증 프로토콜에 관한 연구)

  • Im, Song-Bin;Oh, Young-Hwan
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.36 no.2B
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    • pp.184-194
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    • 2011
  • Security is critically important for smart grid networks that are usually used for the electric power network and IT environments that are opened to attacks, such as, eavesdropping, replay attacks of abnormal messages, forgery of the messages to name a few. ZigBee has emerged as a strong contender for smart grid networks. ZigBee is used for low data rate and low power wireless network applications. To deploy smart grid networks, the collected information requires protection from an adversary over the network in many cases. The security mechanism should be provided for collecting the information over the network. However, the ZigBee protocol has some security weaknesses. In this paper, these weaknesses are discussed and a method to improve security aspect of the ZigBee protocol is presented along with a comparison of the message complexity of the proposed security protocol with that of the current ZigBee protocol.

A Study on the Implementation of outdoor type Virtual Private Network Gateway for Smart Grid (Smart Grid를 위한 필드형 가상사설망(VPN) 게이트웨이의 구현)

  • Park, Jun-Young;Kim, Huy-Kang
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.21 no.4
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    • pp.125-136
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    • 2011
  • The vulnerabilities existed in Korean electricity control systems is unexposed because it is being operated in a closed network with superior security. The threat will become greater once the closed network develops into a smart grid environment with superior intelligence. Security will have a greater impact once each household will be connected to the power plant via the smart meter. This research focuses on stable data transfer in harsh external environment and whole-nation coverage network, and suggested standardized and optimized Virtual Private Network (VPN) Gateway architecture to support Power Line Communication (PLC). The functionality and stability of the prototype has been verified with field tests. For implementation of outdoor type VPN device for smart grid, we adopted PLC low voltage remote-meter-net for data communication. Also, IPSec type tunneling and ARIA algorithm based encryption of data collected by PLC low voltage remote meter is transmitted.

A Method for Simulation of Smart Grid Communication Network Architecture (스마트 그리드용 통신망 아키텍처 시뮬레이션 방법)

  • Kim, Youngsun;Oh, Hui-Myoung;Choi, Sungsoo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.38B no.2
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    • pp.122-129
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    • 2013
  • This paper shows the method for simulating the two-way communication network to transmit information in Smart Grid, which is currently investigated by many researchers. The simulation method can be basically applied to analysis of data traffic for various electric devices such as smart meters, which were tested in Jeju island and massively deployed with nationwide scale.

A Study on the Implementation of High-Speed Hybrid MAC for Smart Grid Application (스마트 그리드 응용에 적합한 고속Hybrid MAC 구현에 관한 연구)

  • Kwon, Tai-Gil;Kim, Yong-Sung;Cho, Jin-Woong;Hong, Dae-Ki
    • Journal of the Semiconductor & Display Technology
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    • v.13 no.1
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    • pp.73-81
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    • 2014
  • In this paper, high-speed Hybrid MAC (Medium Access Control layer) implementation suitable for smart grid applications is researched. MB-OFDM (Multi-Band Orthogonal Frequency Division Multiplexing) is considered for high-speed communication method in smart grid application. In this paper, the MAC adopts the distributed network managing method. Also, the MB-OFDM merit of high-speed transfer rate of up to 480Mbps must be supported. Hence, this paper presents an efficient hardware-software integration (co-design) method in order to realize a high- speed transmission, and a realizing method of distribution network. Finally, MAC performance and reliability based on MB-OFDM PHY (PHYsical layer) are confirmed through simulation and emulation.

Simulation Analysis of Network Load of Application Level Security Protocol for Smart grid (시뮬레이션을 이용한 스마트 그리드 통신망 상의 응용 계층 보안 프로토콜의 부하 분석)

  • Lee, Kwang-Sik;Han, Seung-Chul
    • Journal of the Korea Society for Simulation
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    • v.24 no.1
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    • pp.17-24
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    • 2015
  • Smart grid is a modernized electrical grid that uses information and communication technologies to gather and act on information, such as information about the behaviors of suppliers and consumers, in an automated fashion to improve the efficiency, reliability, economics, and sustainability of the production and distribution of electricity. However, with the advent of cyber crime, there are also concerns on the security of the infrastructure, primarily that involving communications technologies. In this work, we make an in-depth investigation on the issue of security services and network loads on Smart grid. Through simulation, we analyze the relations between security services and network loads. The experimental results of this study will contribute toward designing an advanced Smart grid system that offers better quality of services. Also, the approach proposed in this study can be utilized to derive new and valuable insights in security aspects.

An Analysis on standardization trend of home network energy management based on Smart Grid network (스마트그리드 기반 홈네트워크의 에너지 관리 표준화 동향 분석)

  • Cho, Pyung-dong;Choi, Mun-hwan;Lee, Sang-mu
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2012.10a
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    • pp.491-494
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    • 2012
  • Smart grid can be viewed as additional network constructed on electrical energy network and has close relationship with ICT. In this paper, we introduce smart grid standardization trends focusing on ITU-T activities and discuss future direction.

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Compressed Sensing-Based Multi-Layer Data Communication in Smart Grid Systems

  • Islam, Md. Tahidul;Koo, Insoo
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.7 no.9
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    • pp.2213-2231
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    • 2013
  • Compressed sensing is a novel technology used in the field of wireless communication and sensor networks for channel estimation, signal detection, data gathering, network monitoring, and other applications. It plays a significant role in highly secure, real-time, well organized, and cost-effective data communication in smart-grid (SG) systems, which consist of multi-tier network standards that make it challenging to synchronize in power management communication. In this paper, we present a multi-layer communication model for SG systems and propose compressed-sensing based data transmission at every layer of the SG system to improve data transmission performance. Our approach is to utilize the compressed-sensing procedure at every layer in a controlled manner. Simulation results demonstrate that the proposed monitoring devices need less transmission power than conventional systems. Additionally, secure, reliable, and real-time data transmission is possible with the compressed-sensing technique.