The investigation of a system for assessing the quality of telecommunications services based on the SDN core

DOI №______

Abstract

Today in Ukraine there are already more than 57 million subscribers of different mobile operators. The penetration level of mobile communication is about 130%. For 14 years, since 2003, the number of mobile subscribers has increased almost 9 times (6.5 million subscribers in 2003 and 57 million as of the end of 2017). Just as the number of subscribers, the concept of mobile phone and mobile communications is rapidly changing. We are no longer just enough phone calls or sms, the mobile phone has become the main means of communication, an integral part of our life. The notion "multiservice network" appeared, the range of services, which is expanding every day. Users expand their requirements for the quantity and quality of services. Therefore, before the mobile operators in conditions of high competition and user education is the task of ensuring the declared level of quality of service. Based on these conditions, there is a question of monitoring the quality of services provided by the operator. Thus, the quality management of services will ensure that the telecommunications operator maintains a system with a guaranteed level of quality.
The problem with implementing in providers networks QoS monitoring system is the inability to point to an operator / provider that distorts the service when monitoring the service that is performed between two endpoints. That is, in other words, without the introduction of a third party monitoring the service, it is impossible to determine which of the providers or operators and how much the quality of the service.
On the other hand, it is very difficult to implement a third party that could assess the quality of the current session, which passes through an environment consisting of many providers. Since there is no way to track routing and this particular session because of the complexity of installing interception nodes on the network of operators / providers.
These limitations made it impossible to build an integrated system for monitoring the quality of services on existing equipment. But everything changed with the advent of the SDN concept into telecommunications networks.

Keywords: provider, QoS, multiservice network, SDN, RTP, jitter.

References
1. Internet protocol data communication service IP packet transfer and availability performance parameters // ITU:T Recommendation Y. 1540. - 2016.
2. Царев Д.С. Алгоритм управления сетевым трафиком, учитывающий требования по качеству предоставляемых услуг / Д.С. Царев // Информационные технологии моделирования и управления. - 2009. - 4(56). - С. 571-575.
3. Боровков А.А. Математическая статистика / А.А. Боровков. - М.: Наука. Физматлит, 1984. - 144 с.