scholarly journals Quality-of-Service Differentiation for Smart Grid Neighbor Area Networks

2016 ◽  
Vol 2 (1) ◽  
pp. 20 ◽  
Author(s):  
Gowdemy Rajalingham ◽  
Quang-Dung Ho ◽  
Tho Le-Ngoc
Keyword(s):  
Quality Of Service ◽  
Smart Grid ◽  
Large Scale ◽  
Service Differentiation ◽  
Traffic Load ◽  
Network Graph ◽  
Lossy Networks ◽  
Vast Number ◽  
Rural Region

Neighbor Area Networks (NAN) play a crucial role in the Smart Grid Communications Network (SGCN) and provide connectivity for a vast number of smart meters (SMs) while meeting the varying Quality-of-Service (QoS) requirements of different types of Smart Grid (SG) applications. To that effect, this paper explores the incorporation of QoS differentiation at the network layer in order to shape and control traffic of multiple classes in an end-to-end manner for the SG NAN using the Routing Protocol for Low Power and Lossy Networks (RPL). In particular, this paper proposes QoS enabling extensions, RPL-M and RPL-M+, within the RPL framework by associating multiple network graph instances to different SG application requirements. For illustration, the paper considers two deployment scenarios: large-scale dense urban area and microgrid-based remote rural region. Simulation-centric performance evaluation, in terms of latency and throughput, is performed for periodic and critical traffic classes, for two distinct grid conditions, with increasing data traffic load. The rural region is chosen to highlight achievable performance for microgrids and the transferability of results to different grid architectures.

scholarly journals Multiple Instances QoS Routing in RPL: Application to Smart Grids

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2472 ◽  
Author(s):  
Jad Nassar ◽  
Matthieu Berthomé ◽  
Jérémy Dubrulle ◽  
Nicolas Gouvy ◽  
Nathalie Mitton ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Smart Grid ◽  
Objective Function ◽  
Smart Grids ◽  
Control Point ◽  
Service Differentiation ◽  
Delivery Ratio ◽  
Lossy Networks ◽  
Packet Delivery

The Smart Grid (SG) aims to transform the current electric grid into a “smarter” network where the integration of renewable energy resources, energy efficiency and fault tolerance are the main benefits. This is done by interconnecting every energy source, storage point or central control point with connected devices, where heterogeneous SG applications and signalling messages will have different requirements in terms of reliability, latency and priority. Hence, data routing and prioritization are the main challenges in such networks. So far, RPL (Routing Protocol for Low-Power and Lossy networks) protocol is widely used on Smart Grids for distributing commands over the grid. RPL assures traffic differentiation at the network layer in wireless sensor networks through the logical subdivision of the network in multiple instances, each one relying on a specific Objective Function. However, RPL is not optimized for Smart Grids, as its main objective functions and their associated metric does not allow Quality of Service differentiation. To overcome this, we propose OFQS an objective function with a multi-objective metric that considers the delay and the remaining energy in the battery nodes alongside with the dynamic quality of the communication links. Our function automatically adapts to the number of instances (traffic classes) providing a Quality of Service differentiation based on the different Smart Grid applications requirements. We tested our approach on a real sensor testbed. The experimental results show that our proposal provides a lower packet delivery latency and a higher packet delivery ratio while extending the lifetime of the network compared to solutions in the literature.

scholarly journals Social Collective Attack Model and Procedures for Large-Scale Cyber-Physical Systems

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 991
Author(s):  
Peidong Zhu ◽  
Peng Xun ◽  
Yifan Hu ◽  
Yinqiao Xiong
Keyword(s):  
Smart Grid ◽  
Collective Behavior ◽  
Physical System ◽  
Large Scale ◽  
Public Utility ◽  
Modeling Framework ◽  
Vast Number ◽  
Attack Model ◽  
The Social ◽  
Social Collective

A large-scale Cyber-Physical System (CPS) such as a smart grid usually provides service to a vast number of users as a public utility. Security is one of the most vital aspects in such critical infrastructures. The existing CPS security usually considers the attack from the information domain to the physical domain, such as injecting false data to damage sensing. Social Collective Attack on CPS (SCAC) is proposed as a new kind of attack that intrudes into the social domain and manipulates the collective behavior of social users to disrupt the physical subsystem. To provide a systematic description framework for such threats, we extend MITRE ATT&CK, the most used cyber adversary behavior modeling framework, to cover social, cyber, and physical domains. We discuss how the disinformation may be constructed and eventually leads to physical system malfunction through the social-cyber-physical interfaces, and we analyze how the adversaries launch disinformation attacks to better manipulate collective behavior. Finally, simulation analysis of SCAC in a smart grid is provided to demonstrate the possibility of such an attack.

Quality-of-service differentiation and fairness in optical burst-switched networks

2002 ◽  
Author(s):  
Fabrice Poppe ◽  
Koenraad Laevens ◽  
Herman Michiel ◽  
Serge Molenaar
Keyword(s):  
Quality Of Service ◽  
Service Differentiation ◽  
Switched Networks ◽  
Optical Burst

An Unsupervised Approach to Infer Quality of Service for Large-Scale Wireless Networking

2020 ◽  
Vol 28 (4) ◽  
pp. 1228-1247
Author(s):  
Lucio Henrik A. Reis ◽  
Luiz Claudio S. Magalhães ◽  
Dianne Scherly V. de Medeiros ◽  
Diogo M. F. Mattos
Keyword(s):  
Quality Of Service ◽  
Large Scale ◽  
Wireless Networking ◽  
Unsupervised Approach

Quality of service aware traffic scheduling in wireless smart grid communication

2017 ◽  
Vol 66 (2) ◽  
pp. 233-242 ◽  
Author(s):  
Parya Hajimirzaee ◽  
Mohammad Fathi ◽  
Nooruldeen Nasih Qader
Keyword(s):  
Quality Of Service ◽  
Smart Grid ◽  
Traffic Scheduling ◽  
Smart Grid Communication
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