Redundant cell allocation for mobile nodes to improve the efficiency of real-time flow scheduling in Industrial Internet of Things

Redundant cell allocation for mobile nodes to improve the efficiency of real-time flow scheduling in Industrial Internet of Things


Redundant cell allocation for mobile nodes to improve the efficiency of real-time flow scheduling in Industrial Internet of Things

نوع: Type: thesis

مقطع: Segment: masters

عنوان: Title: Redundant cell allocation for mobile nodes to improve the efficiency of real-time flow scheduling in Industrial Internet of Things

ارائه دهنده: Provider: Sara Roohiha

اساتید راهنما: Supervisors: Dr Reza Mohammadi

اساتید مشاور: Advisory Professors: Dr mohammad Nasiri

اساتید ممتحن یا داور: Examining professors or referees: Dr mahdi Abbasi and Dr Hatam Abdoli

زمان و تاریخ ارائه: Time and date of presentation: October 2022

مکان ارائه: Place of presentation: seminar 2 of Civil Engineering

چکیده: Abstract: In recent years, the widespread desire to use smart devices as well as managing industrial automation environments has led to the growth of wireless sensor networks and the Internet of Things. In the Internet of Things, a large number of sensors are distributed in order to control and collect information in the environment in order to provide the ability to make intelligent decisions. Today, these types of networks are used for various applications. One of the important goals in Industry 4 is to use wireless network technologies for the Internet of Industrial Things so that industrial processes can be monitored more efficiently. Nowadays, industrial Internet of Things networks are used for various applications such as medical, military, etc. For this type of networks, criteria such as delay, energy consumption, reliability and lifetime of nodes are the basic challenges. By preventing the nodes from staying on unnecessarily, the lifetime of the network increases. Therefore, in order to control the optimal energy consumption, it is essential to use a suitable sleep and wake-up mechanism in the MAC layer. IEEE 802.15.4 and IEEE 802.15.4e standards have been designed for this purpose. Physical layers and channel access are implemented in 802.15.4 standard for wireless networks with low power consumption. In 2008, the IEEE 802.15.4e standard was introduced, which had only one change in the MAC layer. TSCH is one of the IEEE 802.15.4e standard modes. This standard is a combination of the three ideas of time division, frequency division and channel hopping, which reduces the possibility of collisions between transmitters. 6TiSCH is a working group in the IETF that is standardizing how to combine the 802.15.4e standard with IPv6. Among the existing challenges, the mobility of nodes can be considered as a limiting factor for realizing a network with maintaining full connectivity. In this research, the aim is to investigate the impact of mobility on nodes and sink nodes in 6TiSCH networks. Also, when scheduling traffic flows in IoT, additional cells are considered for mobile nodes and mobile sink nodes. In this method, the limitations of the network nodes (processing, memory and energy) will be taken into account and the network efficiency will be investigated in terms of increasing the reliability and lifetime of the network and reducing the delay. Finally, a proposed method for the network with mobile well node is presented, which can lead to the improvement of the network performance in terms of energy consumption, data delivery time, and network lifetime due to the load distribution among other nodes in the network

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