Tuning guaranteed time slots of IEEE 802.15.4 for transformer health monitoring in the smart grid

Author(s):  
Irfan Al-Anbagi ◽  
Melike Erol-Kantarci ◽  
Hussein T. Mouftah
Author(s):  
Helbert Da Rocha ◽  
Tânia Lucia Monteiro

ABSTRACTInternet of Things (IoT) is a technological paradigm and one of the most important tendency of TI nowadays, it is having a broad scope of research in the most different areas. IoT is playing an important role in the concept of smart cities, smart grid, smart health monitoring, smart clothes, preventive maintenance, etc. The IoT contribution to cities in order to make them intelligent, creates a hall of possibilities where there is almost no limit. The knowledge of this topic was presented to the students of the discipline Advanced Topics in Computer Networks. Unorthodoxly and using new technologies, resulted in the project “Vou de ônibus”. The project, aims to optimize public resources, used in the transportation of university students between two cities in the interior of Brazil, provided daily to academics by one of the local city hall. The project has the goal to determine the partial number of students that will use the transportation on a certain day of the week.RESUMOInternet of Things (IoT) é um paradigma tecnológico e uma das tendências de TI mais importantes da atualidade, tendo amplo escopo de pesquisa nas mais diversas áreas. IoT está desempenhando um papel importante no conceito de cidades inteligentes, smart grid, monitoramento de saúde inteligente, roupas inteligentes, manutenção preditiva, etc. A contribuição da IoT para cidades, com finalidade de torná-las inteligentes cria um hall de possibilidades onde quase não há limite. O conhecimento deste tema foi apresentado aos alunos da Disciplina de Tópicos Avançados em Redes de Computadores, de forma não ortodoxa e utilizando novas tecnologias, tendo como resultado o projeto “Vou de ônibus”. O projeto, visa otimizar recursos públicos, utilizados no transporte de universitários entre duas cidades no interior do Brasil, fornecido diariamente aos acadêmicos locais por uma das prefeituras. Tendo como objetivo determinar o número parcial de alunos que irá utilizar o transporte em determinado dia da semana.


2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Feng Xia ◽  
Jie Li ◽  
Ruonan Hao ◽  
Xiangjie Kong ◽  
Ruixia Gao

Cyber-Physical Systems (CPS) that collect, exchange, manage information, and coordinate actions are an integral part of the Smart Grid. In addition, Quality of Service (QoS) provisioning in CPS, especially in the wireless sensor/actuator networks, plays an essential role in Smart Grid applications. IEEE 802.15.4, which is one of the most widely used communication protocols in this area, still needs to be improved to meet multiple QoS requirements. This is because IEEE 802.15.4 slotted Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) employs static parameter configuration without supporting differentiated services and network self-adaptivity. To address this issue, this paper proposes a priority-based Service Differentiated and Adaptive CSMA/CA (SDA-CSMA/CA) algorithm to provide differentiated QoS for various Smart Grid applications as well as dynamically initialize backoff exponent according to traffic conditions. Simulation results demonstrate that the proposed SDA-CSMA/CA scheme significantly outperforms the IEEE 802.15.4 slotted CSMA/CA in terms of effective data rate, packet loss rate, and average delay.


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