Monitoring and Management of IOT Network Radio Resources
Students Name: Faichuk Valentyn Oleksandrovych
Qualification Level: magister
Speciality: System Administration of Telecommunications Networks
Institute: Institute of Telecommunications, Radioelectronics and Electronic Engineering
Mode of Study: full
Academic Year: 2020-2021 н.р.
Language of Defence: англійська
Abstract: The Internet of things provides lots of capabilities for the development of the new systems, albeit their exploitation requires the solution for a problem of the radio resources access by network nodes as well as their effective consumption. One of the existing solutions is communication, using the multi-hop scheme, which allows the nodes to form a mesh topology and communicate with each other separately. Wireless multi-hop communication is widely used today, but there are still many unsolved issues that are related to the information transmission process and medium access. Today we have lots of methods of a bandwidth distribution. Commonly, these methods are based on an assumption of network access stochastic nature, such as CSMA/CD or CSMA/CA. The corresponding investigations on their turn are based on the probabilistic prediction of the transmission moment and spectrum bandwidth. However, such prediction is not very precise. On the other hand, the dynamical distribution of the spectrum, when being controlled by a software tends to be more efficient. The problem is to effectively redistribute the spectrum when the loading reaches its peak values. Taking into account the subtleties of the IoT devices operation, it is required that each IoT node should be able to redistribute its information flows according to the situation to avoid loading peaks when the centralized spectrum control will lose its efficiency. In works [1,2], the researchers were trying to simplify a process of a routing control by pushing the local loading, which is related to the routing tables computation, of IoT devices to the cloud environment. This allowed decreasing the energy consumption of a whole IoT system. The authors of the work [3] have tried to develop an efficient hardware power-saving scheme that should provide the ability to switch the IoT device to the power-saving mode. Along with that, the work is not focused on the communication subtleties and communication establishment between nodes. The dynamical spectrum distribution issues, channels allocation that is based on the QoS requirements, spectrum sensing and distributed coordination were studied by Z. Chkirbene I. F. Akyildiz et. al. [4-8]. Y. Liu, K.-F. Tong, X. Qiu, Y. Liu та X. Ding [9] have proposed an analytical model to compute the bandwidth capacity for the channels, which operate according to the 802.11 DCF standard, that predicts the final amount of UE that could work in the allocated bandwidth as well as the perfect conditions to access the resource of a channel. However, we think that this model seems to be oversimplified. In the work, we propose the new monitoring and radio resource access conception: to get rid of arbiter and organize a dedicated network, where resources are distributed dynamically, based on the needs. The only limitation is that the medium must be able to hold enough bandwidth to organize a set of separate carriers, tunnels, for parallel communication. Hence, the main goal of this work is to develop a new principle for tunnel selection by two or more nodes and to define the impact of its parameters on the resulting performance. After that, the tunnel is used as a separate carrier, shared between these nodes for the communication. Thus, two modes could be outlined: the mode of an appropriate tunnel selection and communication mode. In this master’s thesis, we propose the tunnel selection mode, which allows to perform this plus defined the impact of its technical parameters and found the best condition for its operation. As a result, we propose a new method of a distributed medium access by the informational unit for a carrier (tunnel) selection, which is more flexible, comparing to the existing solutions, because does not require an external orchestration and allows to use tunnels simultaneously and to dynamically exchange them. The work covers the general investigation of the IoT, a study of the MAC layer control and radio resource control in the NB-IoT as well as some other approaches to control the radio access network (RAN) by using a so-called network slicing altogether with the corresponding framework. Finally, after collecting the necessary information and using the method for a distributed medium access we have formed the prototype of a control and connection policy establishment system that allowed us to manage the cluster as well as intercluster relationships within the IoT. The developed prototype uses the control channel CC for configurations distribution between independent nodes. During the development of the system’ prototype, we have implemented a framework for IoT clusters creation, using the C++ programming language. Practically, the results of this work could be used for the wireless sensor networks deployment in enterprises or healthcare institutions. Study object - process of transmitting information flows in wireless networks. Subject of study - methods and algorithms for managing of wireless networks radio resources. Scope of research - methods of process control access to resources and control over the process of transmission of information flows in wireless networks. Goal of research: increase the resource efficiency of wireless communication channels with control of intracluster and intercluster interaction of IoT nodes in the conditions of sharp growth of dynamics of streams and instability of noise level in radio channels of modern IoT networks. Keywords: IoT, RAN, MAC, control channel, frequency hopping, spectrum selection References: 1. V. 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