A cross-layer routing and scheduling mechanism for real-time traffic flows in Industrial Internet of Thing

نوع: Type: thesis

مقطع: Segment: masters

عنوان: Title: A cross-layer routing and scheduling mechanism for real-time traffic flows in Industrial Internet of Thing

ارائه دهنده: Provider: nikta azimian

اساتید راهنما: Supervisors: Dr. Reza Mohammadi, Dr. Mohammad Nassiri

اساتید مشاور: Advisory Professors:

اساتید ممتحن یا داور: Examining professors or referees: Dr. Mir Hossein Dezfoulian, Dr. Hatam Abdoli

زمان و تاریخ ارائه: Time and date of presentation: 2022-03-12

مکان ارائه: Place of presentation: virtual

چکیده: Abstract: The Internet of Things has a wide range of applications in the fields of industry, medicine, etc. is used for specific purposes such as environmental monitoring, target tracking or warning against unauthorized intrusion. The IoT consists of a set of nodes that include a processor, a battery (power supply), a radio (for communicating and exchanging data), and several physical sensors (temperature, pressure, humidity, and so on) is. These nodes exchange their data with one or more receiver stations that can be fixed or mobile. One of the limitations of IoT nodes is processing, memory, and energy. Reliability, latency, and energy metrics are very important for IoT applications. Applications are real-time so latency should be kept to a minimum. In addition, in order for energy consumption to be optimally controlled in the IoT. it is necessary to have a proper sleep-wake mechanism as well as competition for a common channel in the MAC sublayer. MAC and physical layers must be designed with great care. To achieve this, standards such as IEEE 802.15.4 and IEEE 802.15.4e have designed the MAC and physical layers for use in the Internet of Things, which have low power consumption. The IEEE 802.15.4 standard, is that centrally regulates access to the shared channel between nodes based on node coordination. This coordination is done by the coordinator by sending small packages called Beacon. In 2008, the IEEE 802.15.4e standard was introduced, which is just a change in the MAC layer. One of the modes of this standard is TSCH. This standard is a combination of three ideas of time division, frequency division and high-channel division, which reduces the possibility of collision between transmitters. The TSCH mechanism enables each node to schedule its data transmission on a single channel and in a specific time slot. However, the method of channel / slot allocation and its algorithm are not specified in the standard. So far, several scheduling methods have been proposed for 6TiSCH networks, but limited research has been done in the field of scheduling in networks with the possibility of installing multi sink. The aim of this dissertation is to investigate the mechanism of using multi sink in 6TiSCH networks. Also provide an cross-layer method considering both scheduling and routing in TSCH and RPL-based networks in multi sink environments. Finally, with this simulation, the performance of the research will be evaluated and compared with existing methods. The results show that the use of multi sink in the network along with a scheduling algorithm, improves the parameters of network life time, delay and packet delivery ratio

فایل: ّFile: Download فایل