Sensor network connectivity models

Astakhova, Tatiyana; Verzun, Nataliya; Kasatkin, V. V.; Kolbanev, Mikhail; Shamin, Aleksey

doi:10.31799/1684-8853-2019-5-38-50

Cited by 10 publications

(3 citation statements)

References 10 publications

(11 reference statements)

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“…The list of traditional and long-used indicators used for monitoring the effectiveness of information and communication systems can be expanded with alternative indicators. For example, in [11,12], probabilistic and energy indicators that depend on the technical characteristics of terminal devices and on the spatial parameters of access radio networks are considered.…”

Section: Step I Selecting the Radio Network To Accessmentioning

confidence: 99%

The Architecture of the Access Protocols of the Global Infocommunication Resources

2020

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One of the important functions of cyberspace is to provide people and devices with access to global infocommunication resources, and as the network infrastructure develops, the number of access options increases, including those based on wireless technologies. A wide variety of access technologies leads to the formation of heterogeneous broadcast networks. Following the concept of Always Best Connected and striving for rational use of access network resources, developers use Vertical Handover procedures today. This approach assumes the existence of a selection criterion that allows you to prefer a particular network to other networks from the number of available and able to provide the required connection and services, and a selection procedure that implements the process of calculating the characteristics of access in each of the acceptable options. When implementing a vertical handover, it should be taken into account that the rational choice depends on the moment of time and point of space at which the terminal device developed a request to establish a connection. The corresponding procedures can be implemented in accordance with decentralized or centralized architectures. In the first case, the choice is made by hardware and software of terminal devices. The disadvantage of this implementation is the complexity and, as a result, the rise in price of terminal devices, each of which requires a corresponding complexity of the selection procedure of the performance and memory reserve. Another negative consequence of the decentralized approach is a decrease in the last-mile network utilization rate due to the inability to make complex decisions. The article discusses the centralized architecture of access protocols to global infocommunication resources. In accordance with it, the access network is selected by a new centralized network device that was not previously used on communication networks. The protocols that this network element implements should be located between the first (physical) and second (channel) levels of the open system interaction model. The purpose of the study is to develop an effective architectural solution for access networks and create a mathematical model for evaluating the efficiency of using the last mile resources and the quality of user service. The object of research is architectural solutions for last-mile networks. The subject of research is models of the theory of tele-traffic that allow us to evaluate the qualitative characteristics of the corresponding process. To achieve this goal the following tasks were solved in the article: analysis of known approaches to selecting one of several available access networks; development of a centralized architecture that changes the basic model of interaction between open systems; description of the metadata exchange scenario between network elements of the new architecture; development of a mathematical model of the data transmission process in the access radio network; conducting numerical estimates of the probabilistic and temporal characteristics of the proposed procedures.

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Section: Step I Selecting the Radio Network To Accessmentioning

confidence: 99%

The Architecture of the Access Protocols of the Global Infocommunication Resources

2020

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“…According to specialized experts agriculture today has a low level of development in the field of information, economic, production and technological support in comparison with other groups of social production sectors. The system of agricultural production is in dire need of research aimed at determining the consequences of digital transformations in agriculture, expert opinions are needed on the feasibility of launching processes aimed at the comprehensive digitalization of enterprises and other business entities [1]. It is also necessary to determine the level of readiness of the agricultural sector to carry out a comprehensive upgrade of the technological base.…”

Section: Introductionmentioning

confidence: 99%

Development of a model of a universal technological platform for digitalization in the agro-food complex

Sazonov

Sazonova

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Determining the specific features of the work of the agricultural production system is impossible without conducting research on the prospects for digital transformations in the field of agriculture, substantiating the necessary factors initiating the processes of its widespread digitalization, assessing the degree of readiness of economic entities working in the agricultural sector for a comprehensive update of their technical and technological base, and system mechanisms responsible for the organization of intersubjective relations. The purpose of the study conducted in the article is to develop conceptual and theoretical provisions aimed at creating the necessary conditions conducive to the implementation of competent and effective digital transformations in the field of agriculture including the assessment and analysis of subsequent prospects from the digitalization of this area. The theoretical and methodological basis of the research conducted in the article was the scientific work of scientists in the field of informatization or digitalization of agriculture, the use of digital mechanisms for organizing the management of the agricultural sector, normative and legislative acts regulating the mechanisms of interaction between individual subjects of the digital economy. The authors have identified key groups of factors that determine the key features of launching processes in the field of digital transformations in the field of agriculture. A comprehensive model for organizing platformdigital solutions for digitalization in the agro-food complex is proposed. The model describes the work of groups of subjects, their goals and objectives, functions within the digital ecosystem being created taking into account a wide range of end-to-end tools offered by Industry 4.0

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“…The achievement of high and stable performance indicators, reliability, fault tolerance [1][2][3], and security of computer systems is facilitated by the use of technologies for consolidation of clustering and virtualization resources, accompanied by replication and migration of virtual machines between physical servers. Migration and replication of virtual machines speed up the reconfiguration process after failures of physical resources and contribute to support the continuity of the computing process required for managing cyber-physical systems and real-time technological processes [4][5][6].…”

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confidence: 99%

Evaluation of a Cyber-Physical Computing System with Migration of Virtual Machines during Continuous Computing

Bogatyrev

Derkach

2020

Computers

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The Markov model of reliability of a failover cluster performing calculations in a cyber-physical system is considered. The continuity of the cluster computing process in the event of a failure of the physical resources of the servers is provided on the basis of virtualization technology and is associated with the migration of virtual machines. The difference in the proposed model is that it considers the restrictions on the allowable time of interruption of the computational process during cluster recovery. This limitation is due to the fact that, if two physical servers fail, then object management is lost, which is unacceptable. Failure occurs if their recovery time is longer than the maximum allowable time of interruption of the computing process. The modes of operation of the cluster with and without system recovery in the event of a failure of part of the system resources that do not lead to loss of continuity of the computing process are considered. The results of the article are aimed at the possibility of assessing the probability of cluster operability while supporting the continuity of computations and its running to failure, leading to the interruption of the computational (control) process beyond the maximum permissible time. As a result of the calculation example for the presented models, it was shown that the mean time to failure during recovery under conditions of supporting the continuity of the computing process increases by more than two orders of magnitude.

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Sensor network connectivity models

Cited by 10 publications

References 10 publications

The Architecture of the Access Protocols of the Global Infocommunication Resources

The Architecture of the Access Protocols of the Global Infocommunication Resources

Development of a model of a universal technological platform for digitalization in the agro-food complex

Evaluation of a Cyber-Physical Computing System with Migration of Virtual Machines during Continuous Computing

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