Principles of Synchronous Digital Hierarchy

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en Limba Engleză Hardback – 24 Aug 2012
The book presents the current standards of digital multiplexing, called synchronous digital hierarchy, including analog multiplexing technologies. It is aimed at telecommunication professionals who want to develop an understanding of digital multiplexing and synchronous digital hierarchy, in particular, and the functioning of practical telecommunication systems, in general. The text includes all relevant fundamentals and provides a handy reference for problem solving or defining operations and maintenance strategies. The author covers digital conversion and TDM principles, line coding and digital modulation, signal impairments, and synchronization, as well as emerging systems.
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ISBN-13: 9781466517264
ISBN-10: 1466517263
Pagini: 555
Dimensiuni: 156 x 235 x 35 mm
Greutate: 0 kg
Ediția: New.
Editura: CRC Press


Introduction You and Me Mr. Watson, Come Here, I Want To See You The Technology of Telephone Telephone Exchanges Long Distance Communication The Need for Multiplexing The Techniques of Multiplexing Multiplexing Structure of Frequency Division Multiplexing (FDM) Capacities of Various Analog (FDM) Multiplexing Systems Digital Multiplexing References Review Questions Critical Thinking Advent of Digital Technology Analog Communication Systems Problems in Analog Communication Systems What is Done about These Problems? The Digital Advantage The Digital Signal Processing of Digital Signal Channel Capacity in Digital Technology Advantages of Digital Technology Disadvantages of Digital Technology References Review Questions Critical Thinking Analog to Digital Conversion and TDM Principles Analog and Digital Signals Sampling Theorem (Analog) Pulse Modulation Digital Pulse Code Modulation (PCM) Other Digital Modulations Analog to Digital and Digital to Analog Converters Time Division Multiplexing (TDM) References Review Questions Critical Thinking Line Coding and Digital Modulation Factors Affecting the Choice of Line Codes Types of Line Codes Digital Modulation Techniques Other Means of Improving the Timing Content References Review Questions Critical Thinking Clock What is Clock Significance of Clock Clock Waveform Types of Clocks Clock Accuracies Required in Communication Systems References Review Questions Critical Thinking Signal Impairments, Error Detection, and Correction Types of Signal Impairments Attenuation Distortion Inter Symbol Interference (ISI) Jitter and Wander Eye Diagram Error Detection Error Correction Link Performance Required Link Performance References Review Questions Critical Thinking Synchronization Synchronization Process Synchronous versus Asynchronous Systems Synchronous Networks Plesiochronous networks Slips Elastic Store and Controlled Slips Line Synchronization vs Network Synchronization Types of Network Synchronization Pseudo-synchronization Synchronization Network Engineering References Review Questions Critical Thinking Plesiochronous Digital Hierarchy (PDH) PCM Higher order Multiplexing/Hierarchical Multiplexing E3 Multiplexing E4 multiplexing Higher Bit Rates Framing Stages and Tributary Data, Overhead and Payload Bits North American PDH Hierarchy Types of Line Codes used in PDH Synchronization in PDH Asynchronous Vs Synchronous Multiplexing Skip Multiplexers References Review Questions Critical Thinking PDH Maintenance Alarms Types of Alarms Loss of Signal (LOS) Loss of Framing (LOF) Alarm Indication Signal (AIS) Remote Defect Indication (RDI) Determination of Fault Location Loss of Multi-Frame Alignment (LOMF) Multi-Frame Alignment AIS (MFAIS) Multi-Frame Alignment RDI (MFRDI) Remote End Block Error (REBE) References Review Questions Critical Thinking Synchronous Digital Hierarchy (SDH) Principles Evolution of SDH Advantages of SDH The Price to be paid for the Advantages Synchronous Transport Module (STM) Formation of STM-1 Container Mapping Virtual Containers Path and Section SDH Layers Tributary Unit Further Multiplexing Multiplexing Higher order PDH Tributaries Complete SDH Multiplexing Structure Frame Structure of STM-1 Pointer Formation of Higher Order STMs Frame Structure of Higher Order STMs References Review Questions Critical Thinking Operations and Maintenance in SDH Performance Monitoring Fault Diagnostics and Restoration Summary of SDH Alarms and Indications Performance Monitoring Parameters Roles of Other Overhead Bytes Overhead Bytes Summary Network Management in SDH References Review Questions Critical Thinking SDH Architecture and Protection Mechanisms SDH Network Elements SDH Network Topologies Work and Protect Paths The Advantage of a Ring Protection Switching Schemes Self Healing Rings Types of Automatic Protection Switching MS Dedicated Ring Protection MS Shared Ring Protection Other Important Features of Protection Switching Sub Network Connection Protection Comparison of Various Protection Schemes Deployment of Protection in a Network References Review Questions Critical Thinking Data over SDH Problems of Interfacing Data and SDH Data as Payload Concatenation Contiguous Concatenation Mapping of ATM (Asynchronous Transfer Mode) Frames Mapping of HDLC, PPP, Ethernet, IP, LAPS Shortcomings of Data over SDH References Review Questions Critical Thinking Emerging Systems and Future of SDH The Case for Ethernet Backbone The SDH's Fight Next Generation SDH Resilient Packet Ring (RPR) New Generation Network Elements Carrier Ethernet What is Future? SDH or Packet Networks References Review Questions Critical Thinking Transmission Media for PDH/SDH and Optical Fiber Technology Types of media for the transmission of PDH and SDH signals Optical Fiber Communication Technology All Optical Networks OFC Link Budget References Review Questions Critical Thinking Introduction to Optical Transport Networks (OTN) Optical Transport Hierarchy (OTH) Principles Multiplexing Structure of OTN Multiplexing Hierarchy of OTN (OTH ) OTN Layers OTN Domain Interfaces Advantages of OTN Frame Structure of OTN Forward Error Correction (FEC) Operations & Maintenance in OTN Future of OTN References Review Questions Critical Thinking


".. one of the best book for practicing engineers in the field of OFC based SDH systems." -S.K. Biswas, Chief Communication Engineer, Western Railway, Mumbai, India