In this paper, the network readiness of the enterprises in Ukraine has been analyzed. National statistics data and international indices were used to measure and characterize fundamental changes in Ukraine at the economic and business levels. These changes are influenced by modern information technologies and new global information society tendencies. Indicators used to measure the network readiness of the enterprises were examined. Obtained results show positive dynamic improvement and simplification of enterprise activities under network economy growth in Ukraine. The detailed examination of individual indicators confirmed infrastructure and availability of digital content and prevalence of the business and innovation environment over the network economy's actual enterprise performance in 2018.An integral indicator was used to measure the level of actual use of information and communication technologies, the implementation of innovations, automated data exchange by national enterprises, and network readiness. The integral indicator of the enterprises' network readiness is a comprehensive summary of 46 components were grouped by authors into the following blocks: infrastructure and availability of digital content; business and innovation environment; business exploitation.The analysis of the selected block of indicators for 2010-2018 showed positive network readiness dynamics. The gap between the enterprises' network readiness at the regional and national levels was measured by calculating the distance between the network vector of a particular region and the average values in Ukraine. In 2018, the length of the network vector Aj was 57.27. Of the 622 enterprises surveyed, almost 94% used computers. Among the studied enterprises, a large proportion used the Internet to carry out banking operations and automated data exchange, receive tax forms, send or forward completed forms.A negative trend towards an increase in the gap between information and communication technologies at the regional and national levels has been revealed. The studied indices of the enterprises' network readiness in Ukraine enabled us to measure the level of digital infrastructure, business climate, business opportunities provided to some extent by information and communication technologies and the Internet, facilitating business operations and their quantity. The authors selected indices related to network readiness, analyzed the components which influence businesses and region capability to exploit information communication technologies to develop.

Background. Currently, of great interest for developers of modern distributed electronic communications systems are communication architectures based on a swarm (a connected set of separate mobile devices-nodes) of drones (small unmanned aerial vehicles, UAVs). At the same time, RFID technology is increasingly being used with various security systems. The field of joint application of RFID and UAV technologies has now become very extensive, as demonstrated by many publications.Objective. The aim of the paper is to present the possibility of using radio frequency identification technology when a swarm of drones operates in the communication system mode, that is, the use of RFID to form control and traffic channels of a distributed self-organizing drone system.Methods. The structural and functional methods of constructing a wireless network based on a drone swarm are investigated.Results. An analytical review of the literature on the combined use of RFID and UAVs is presented. High interest in this topic is shown. A scenario has been developed for a swarm of drones operating in a self-organizing communication system using RFID technology.The procedure for exchange of control commands in a swarm using RFID is described. A feature of this procedure is the presence of drone authorization in it, which can be performed using inductive coupling, when all drones in the swarm have their own specific passive tags, which are triggered (emitted) only if a signal from the reader hits them.The frequency ranges and transmission powers of RFID systems are presented, which can be used for the scenario presented in the paper.Conclusions. The use of RFID, first of all, makes it possible to provide an increase in protection against external interception of control channels, a decrease in the likelihood of external interference, and a decrease in the energy consumption of the on-board battery. Further research may include numerical modeling of the operation of a swarm of drones in the mode of a self-organizing communication system using RFID technology.

Background. Intensive development of the unmanned aerial vehicle manufacturing industry has led to the emergence of many of their options for various applications. A separate class of low-flying drones, the work of which takes place within the framework of a certain self-organizing (robotic) group, was made up of drones, combined in a constellation or swarm. All drones of such a swarm together can perform one common function as an independent robotic complex.Objective. The aim of this work is experimental testing and development of the basic principles of controlling a swarm (constellation) of drones and the formation of a cooperative relay system.Methods. The structural and functional methods of constructing a wireless network based on a drone swarm are investigated.Results. Testing a swarm of drones was carried out according to two relay scenarios: passive using metallized reflectors and active using additional SDR radio units. Drones were formed on the basis of the quadcopter model Syma X8 PRO. For testing, radio channels in the 2.4 and 5.8 GHz bands were involved.The developed kit based on the Raspberry Pi and ADALM-Pluto programmable modules allows you to use them very flexibly both on drones and on the ground control station by changing the software on them.Each of the drones has many degrees of freedom with respect to the choice of wireless connection to other swarm drones or external devices, including ground control station. This increases the noise immunity, fault tolerance and functionality of such a system, as well as the possibility of building it up.Conclusions. Experimental testing and testing of the basic principles of controlling a swarm (constellation) of drones and the formation of a cooperative relay system were carried out. Scenarios for centralized and distributed construction of a collective drone swarm management network for communication services have been developed.

No abstract

Background. The explosive growth in the use of mobile broadband is significantly increasing the bandwidth requirements. Millimeter-wave spectrum is necessary for 5G networks to achieve data transfer rates of the order of Gb/s, in particular, for the provision of 3D video services, and the use radio modules for millimeter-wave frequencies as picocells in the streets will expand the capabilities of existing cellular networks and provide an increase in bandwidth. Therefore, the study of the characteristics of this spectrum is an urgent task today. Objective. The purpose of the paper is to present the results of studying the characteristics of a millimeter-wave radio link to ensure high-speed user access to IP data transmission networks and the possibility of using the IEEE 802.11ad standard in open areas. Methods. Structural and functional methods of constructing a millimeter-wave wireless network in urban areas based on IEEE 802.11ad standard hardware are investigated. Results. The studies were carried out using a test bench with a point-to-point topology deployed in an urban environment (Kiev) with the line of sight without significant obstacles. The studies tested the possibility of using for millimeter-wave hardware technologies of the IEEE 802.11ad standard, which is used indoors, for applications in urban areas. The use of a narrow beam antenna based on an antenna array allows adaptive control of the radiation pattern to bypass small obstacles blocking direct transmission, which allows reducing interference and receive/transmit a signal. Conclusions. Experimental testing of the hardware capabilities of the IEEE 802.11ad standard has been carried out. Scenarios for constructing a millimeter-wave radio link under various weather conditions have been worked out. Keywords: millimeter-wave; bandwidth; IEEE 802.11ad standard; 5G networks