network

Наведено алгоритм побудови сенсорної мережі кластерної структури на основі триколірної евристики. Описано програмний продукт, який реалізує вказаний алгоритм та дає змогу досліджувати сенсорні мережі цього класу. Наведено результати досліджень життєвого циклу сенсорної мережі при виході з ладу сенсорів у результаті їх відмови.

Описано концептуальну модель розробленого імітаційного алгоритму, призначеного для моделювання роботи мереж з технологією MPLS, програмна реалізація якого дає змогу досліджувати завантаженість мережевих елементів, аналізувати та оптимізувати характеристики мереж, а також досліджувати поведінку трафіка різних класів.

Today, there are millions of Wi-Fi hotspots available by diverse service providers such as operators, public spaces, enterprises, and even cities. With the developments on OpenRoaming approach, cloud federation, automatic global roaming, efficient user onboarding and network automation have become important requirements for stakeholders within the ecosystem.

Systems for detecting network intrusions and detecting signs of cyber attacks on information systems have long been used as one of the necessary lines of defense of information systems. Today, intrusion and attack detection systems are usually software or hardware-software solutions that automate the process of monitoring events occurring in the information system or network, as well as independently analyze these events in search of signs of security problems.

This paper explores the principles of construction, monitoring, management, and safety organization in the network of charging stations for electric vehicles. The use of elements of modern client-server technologies and elements of cyber-physical systems in such networks is offered. The basic structure of the cyber-physical control system of the charging station network has been developed. Network server and client tools have been researched and developed. Structural and functional server solutions and client parts are submitted.

The aim is the development of social networking Web portal for building not only social activities and ties, but also for the development and promotion of active lifestyle among people at all ages and status. The key objectives of the information system development through building of an objective tree have been identified. UML modeling of the system was fulfilled by building of diagrams such as: USE CASE, SEQUENCE, STATECHART, DEPLOYMENT, also the problem and tasks have been set.

The main approaches for the formation of generalized conclusions about operation quality of complex hierarchical network systems are analyzed.  Advantages and drawbacks of the ``weakest'' element method and a weighted linear aggregation method are determined.  Nonlinear aggregation method is proposed for evaluating the quality of the system, which consists of elements of the same priority.  Hybrid approaches to form generalized conclusions are developed based on the main aggregation methods.  It is shown that they allow us to obtain more reliable generalized conclusions.

The reasons and methods of transmitting of the RTSP (Real Time Streaming Protocol) video threads from IP-cameras was reviewed on this article. As a solution we used retranslation module that can resolve problems with IP-cam access from internet and also support streaming over low speed channels.