Analytical review of schemes models for wireless multiservice networks under shared access frameworks

The modern development of infocommunication technologies is closely connected with the problem of rapid growth of the transmitted data volume in the conditions of limited radio frequency range of mobile networks. The shortage of radio resources leads to a decrease in the bit rate in mobile communication networks, and, consequently, degrades the level of quality of user service, the requirements for which are defined in the telecommunication standards. One possible solution of this problem is the use of the licensed frequency sharing system (Licensed Shared Access, LSA) proposed by the European Telecommunication Standardization Institute (ETSI). This system is an example of effective use of the frequency spectrum, taken by the mobile operator for rent from the owner, who uses this spectrum periodically. The owner has absolute priority in using this spectrum of frequencies. Setting priority is possible with the help of various scenarios, differently influencing to the level of quality of user service. In these conditions fundamental researches in the field of development of the most effective scenarios of realization of a priority of the owner - mathematical modelling for shared use schemes of radio frequencies are actual. The second technology that solves the problem of radio resources lack is LAA - Licensed Assisted Access. LAA is a technology that allows to increase the connection bit rate and the bandwidth of the communication channel. LAA uses small cells for its work. By installing small base stations with an integrated LAA system, operators can increase the transmission rate in congested areas, for example, indoors. Researching of such systems is aimed at the development and analysis performance measures of Markov models describing wireless multiservice networks. Researches of such models and current technologies used in wireless multiservice networks are carried out by the using mathematical apparatus of the queueing theory, the teletraffic theory, and also the methods of stochastic geometry. This will make it possible to calculate and evaluate the quality of service (QoS) for users in wireless networks of future generations, as well as to plan various options for the development of networks to keep previous users and attract new ones. The paper presents an analytical review of the existing models using the considered systems and the conducted research. Copyright © 2018 for the individual papers by the papers' authors.