METHODS OF SYNCHRONIZATION OF FREQUENCY AND TIME IN MULTISERVICE MACRONETWORKS
Journal Title: Телекомунікаційні та інформаційні технології - Year 2018, Vol 141, Issue 1
Abstract
The article shows the architecture of the multiservice macro network of the mobile operator and the network synchronization scheme. The current trend in the development of the primary network of a multiservice macro network is an increase in the role of network synchronization and this trend will continue in the near future. Moreover, synchronization problems are not limited only to the primary network, but are of great importance in the construction of access networks with the calculation of different technologies and protocols implemented in a multiservice macro network. The topical issues of network synchronization in a multiservice macro network are noted, namely: - synchronization tasks; - a set of normalized parameters and methods for measuring them; - the amount of control of the synchronization parameters. The need to provide accurate time signals for a multiservice macro network is considered. The main methods for providing network synchronization are given, which include: Sync-E mechanism, functioning at the physical level, independent of the network load and allowing the synchronization signal to be transmitted through the transit devices; PTP channel protocol that provides both frequency and time synchronization, but the stability of the propagated signal depends on the network utilization level, as well as on the distance between network nodes and the number of transitions; NTP protocol that works at the application layer and is widely used, as a rule, for time synchronization in packet networks. The results of measurements of the stability parameters on the sections using Sync-E, the protocol of precision time, and also the network time protocol are shown.
Authors and Affiliations
Nataliya Fedorova, Kamal Elissawi
Keywords
Related Articles
- EP ID EP458959
- DOI -
- Views 113
- Downloads 0
MATHEMATICAL MODEL OF THE NETWORK EQUILIBRIUM FOR THE CASE OF COMPETITION IN THE CONDITIONS OF INCOMPLETE AWARENESS
In this paper a network equilibrium framework for the modeling and analysis of competitive firms engaged in Internet advertising among multiple websites was developed. The optimization problem is formulated in relation t...
PECULIARITIES OF USING THE LAGRANGIAN POINTS IN MODERN SPACEFLIEGHT
The article discusses the possibilitу of using the Lagrangian points (libration points ) in outer space ‒ starts of rockets, spacecraft for various purposes, emergencу situations, disposal of space debris. The advantages...
Desktop study of the effects of mobile number portability on mobile operators in Georgia and Belarus
This article presents findings of the desktop research on the impact of MNP on mobile operators in Georgia and Belarus, which were the first among former Soviet republics to introduce the service. It examines the behavio...
The method for determining optimal parameters of the low-loss transmission windows in terahertz range.
The questions of increasing the efficiency of data transmission over a wireless and terahertz channel based on the method developed to determine the optimal parameters of low-loss transmission windows are considered. The...
VOICE RECOGNITION IN INTELLIGENT HOME SYSTEMS
In this article, an algorithm for voice recognition is presented for identifying a person based on the Gabor transformation and subsequent implementation of the system intelligent home voise messege. The idea of recognit...