The Fundamentals of Timing and Synchronization for Digital Communication Networks
The Fundamentals of Timing and Synchronization for Digital Communication Networks

Author: Robert N. Lorentsen

Publisher:

Published: 1986

Total Pages: 303

ISBN-13:

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The telecommunications industry is evolving toward integrated end-to-end digital communications networks. To keep pace with this evolution the telecommunications professional must have a current understanding of digital communications technology. Fundamental to this understanding is the knowledge of timing and synchronization (T & S) for digital communications networks. This assemblage of studies is presented as a reference. It reviews the fundamentals of carrier, bit, and character synchronization. The concept of time as the basic unit for T & S is developed. Time scales, clocks, and frequency sources used in timing systems are discussed. TIme and frequency distribution services are described, including LORAN-C and NAVSTAR Global Positioning System (GPS). An explanation of time division multiplexing (TDM) and line codes is given. Network synchronization techniques are examined and classified. (Thesis).

Synchronization of Digital Telecommunications Networks
Synchronization of Digital Telecommunications Networks

Author: Stefano Bregni

Publisher: John Wiley & Sons

Published: 2002

Total Pages: 446

ISBN-13:

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Network synchronization deals with the distribution of time and frequency across a network of clocks often spread over a wide geographical area. The goal is to align (i.e. synchronize) the time and frequency scales of all clocks, by using the communication capacity of their interconnecting links. Network synchronization plays a central role in digital telecommunications as it determines the quality of most services offered by the network operator. However, the importance of network synchronization is often underestimated and how to solve quality-of-service degradation caused by synchronization difficulties can become problematical to all but a synchronization engineer. * Systematically covers a wide spectrum of both theoretical and practical topics * Features a clear and profound description of synchronous and asynchronous digital multiplexing (PDH, SDH), jitter and timing aspects of SDH networks * Expounds synchronization network principles and implementation issues, clock modelling, time and frequency measurement * Presents recent advances in telecommunications clock characterization and measurement If you are a system engineer, researcher, designer or postgraduate student searching for both the basics and an insight into more advanced areas currently under discussion then you will find Synchronization of Digital Telecommunications Networks an enlightening read. It will also prove to be a valuable sourcebook for senior undergraduates and technical personnel in telecommunications companies.

Synchronization and Timing in Telecommunications
Synchronization and Timing in Telecommunications

Author: Kishan Shenoi

Publisher: Booksurge Publishing

Published: 2009-09-17

Total Pages: 496

ISBN-13: 9781439226322

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The title provides a comprehensive treatment of synchronization in packet-switched networks, a tutorial on clocks and timing metrics, and explores issues of real-time services in TDM and IP networks.

Synchronization Techniques for Digital Receivers
Synchronization Techniques for Digital Receivers

Author: Umberto Mengali

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 532

ISBN-13: 1489918078

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Synchronization is a critical function in digital communications; its failures may have catastrophic effects on the transmission system performance. Furthermore, synchronization circuits comprehend such a large part of the receiver hardware that their implementation has a substantial impact on the overall costs. For these reasons design engineers are particularly concerned with the development of new and more efficient synchronization structures. Unfortunately, the advent of digital VLSI technology has radically affected modem design rules, to a point that most analog techniques employed so far have become totally obsolete. Although digital synchronization methods are well established by now in the literature, they only appear in the form of technical papers, often concentrating on specific performance or implementation issues. As a consequence they are hardly useful to give a unified view of an otherwise seemingly heterogeneous field. It is widely recognized that a fundamental understanding of digital synchronization can only be reached by providing the designer with a solid theoretical framework, or else he will not know where to adjust his methods when he attempts to apply them to new situations. The task of the present book is just to develop such a framework.

Digital Clocks for Synchronization and Communications
Digital Clocks for Synchronization and Communications

Author: Masami Kihara

Publisher: Artech House

Published: 2006

Total Pages: 278

ISBN-13: 9781580537650

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If you need an in-depth understanding of the digital clock technologies used in building today's telecommunications networks, this authoritative and practical book is a smart choice. Providing you with critical details on the PLL (phase-locked Loop) technique for clock synchronization and generation, and the DDS (direct digital synthesizer) technique for clock generation, the book helps you achieve synchronization in high-speed networks and frequency stabilization in portable equipment.

Discrete-Control Correction: A Technique for the Synchronization of Digital Communication Networks
Discrete-Control Correction: A Technique for the Synchronization of Digital Communication Networks

Author: Rangaswamy Mukundan

Publisher:

Published: 1975

Total Pages: 67

ISBN-13:

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In a digital communication network the transmission and detection of digital data at each node is controlled by a local clock which supplies the reference timing. Each node also uses buffers on its incoming links to allow for delay and frequency variations. If all the clocks are not in synchronism there will be an eventual overflow or depletion of some of the buffers causing loss of information and hence it is desirable to have the clocks run synchronously. This will also lead to minimizing of buffer capacities. This work examines a method of synchronizing nodal clocks in which periodic corrections are made to each clock based upon changes in local buffer levels. Conditions are derived under which synchronization can be achieved. Explicit formulae have been derived for the frequency of synchronism and steady-state buffer levels. It is further shown that in case of failures of some of the nodes the remaining subnetwork or networks attain synchronism by themselves. All the theoretical results have been verified by software simulation as well as actual hardware implementation.