A centralized load balancing and cell scheduling mechanism for industrial internet of things using anycast transmissions

نوع: Type: thesis

مقطع: Segment: masters

عنوان: Title: A centralized load balancing and cell scheduling mechanism for industrial internet of things using anycast transmissions

ارائه دهنده: Provider: Sahand Amiri

اساتید راهنما: Supervisors: Dr Mohammad Nassiri-Dr Reza Mohammadi

اساتید مشاور: Advisory Professors:

اساتید ممتحن یا داور: Examining professors or referees: Dr MirHossein Dezfoulian-Dr Hatam Abdoli

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

مکان ارائه: Place of presentation: virtual

چکیده: Abstract: The IoT consists of a set of wireless nodes that include a processor, a battery, a radio, and several physical sensors. IoT networks are usually used for specific purposes such as environmental monitoring, target tracking, alerting in specific cases and etc. For IoT networks, there are many challenges which are the most important of them are low latency, power consumption, reliability, and network lifetime. To increase the life of the network, We must prevent the nodes from waking up uselessly. Therefore, in order to optimally control energy consumption, it is necessary to install a proper sleep-wake mechanism in the MAC substrate. for this purpose, standards such as IEEE ۸۰۲.۱۵.۴ and IEEE ۸۰۲.۱۵.۴.e. ۸۰۲.۱۵.۴ have been developed to implement physical layers and channel access for low-power wireless networks. This standard transmits exchange packets centrally on a common channel and based on node synchronization. In ۲۰۰۸, the ۸۰۲.۱۵.۴e standard was introduced, only with a change in the access control layer. This standard increases network reliability by synchronizing between nodes and using multiple non-overlapping channels. The TSCH protocol, part of the IEEE ۸۰۲.۱۵.۴e standard, is the latest generation of high-reliability, low-power MAC protocols since ۲۰۱۰. This mechanism controls the network synchronization and the channel jumping. ۶TiSCH is an IETF working group that has the standardization of a combination of ۸۰۲.۱۵.۴e with IPv۶. So far, several methods have been proposed for scheduling in ۶TiSCH networks. However, the impact of anycast transmission, along with other scheduling constraints, has not been adequately explored. This thesis presents a cell scheduling mechanism based on the IEEE۸۰۲.۱۵.۴e-TSCH standard in the ۶TiSCH protocol stack using an anycast transmission mechanism. This mechanism makes the network resistant to failure, and when the link breaks, the packet is sent through an alternative link. The results of the evaluation of the proposed method implemented in the ۶TiSCH simulator show that this technique quite effectively increases the reliability by reducing re-transmission, which will ultimately reduce the transmission delay

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