Large / Farmer Broadband Cable Access Networks

The HFC Plant
1. Auflage 2008
ISBN: 978-0-08-092214-0
Verlag: Elsevier Science & Techn.
Format: EPUB
Kopierschutz: 6 - ePub Watermark

E-Book, Englisch, 432 Seiten

This book focuses on broadband distribution and systems architecture and concentrates on practical concepts that will allow the reader to do their own design, improvement, and troubleshooting work. The objective is to enhance the skill sets of a large population that designs and builds broadband cable plants, as well as those maintaining and troubleshooting it. A large cross-section of technical personnel who need to learn these skills design, maintain, and service HFC systems from signal creation through transmission to reception and processing at the customer end point. In addition, data/voice and video specialists need to master and reference the basics of HFC design and distribution before contending with the intricacies of their own unique services. This book serves as an essential reference to all cable engineers-those who specifically design and maintain the HFC distribution plant as well as those primarily concerned with data/voice technology as well as video technology. Included is an online component consisting of spreadsheets that were used in developing the material presented in the book.
Concentrates on practical concepts that will allow the user to do his own design, improvement, and trouble-shooting work. Prepares cable engineers and technicians to work with assurance as they face the latest developments and future directions.Concise and tightly focused, allowing readers to easily find answers to questions about an idea or concept they are developing in this area.

David Large is a Principal in the consulting firm Media Connections Group. He is a Fellow Member of the SCTE, a Senior Member of the IEEE, a member of the NCTA Engineering Committee and a member of the NCTA/EIA Joint Engineering Committee.

Autoren/Hrsg.

Large, David

Farmer, James

Inhaltsverzeichnis

1;Front Cover;1
2;Broadband Cable Access Networks;4
3;Copyright Page;5
4;Contents;6
5;Acknowledgments;10
6;About the Authors;12
7;Chapter 1: Linear Broadband Distribution Systems;14
7.1;1.1 Introduction;14
7.2;1.2 Organization of this Book;15
7.3;1.3 The Software Applications;16
7.4;1.4 Why this Book;17
8;Chapter 2: Coaxial RF Technology;18
8.1;2.1 Introduction;18
8.2;2.2 Coaxial Cable;18
8.3;2.3 Amplifiers;32
8.4;2.4 Passive Coaxial Components;59
8.5;2.5 Power Supplies;66
8.6;2.6 Summary;67
9;Chapter 3: Coaxial Distribution System Design;70
9.1;3.1 Introduction;70
9.2;3.2 Carrier-to-Noise Ratio;71
9.3;3.3 Carrier to Distortion;72
9.4;3.4 Noise-Distortion Trade-Off;74
9.5;3.5 System Powering;76
9.6;3.6 Signal Level Management;80
9.7;3.7 Signal Level Stability;82
9.8;3.8 The Service Drop;83
9.9;3.9 Summary;90
10;Chapter 4: Linear Fiber-Optic Signal Transportation;94
10.1;4.1 Introduction;94
10.2;4.2 Optical Basics;95
10.3;4.3 Multimode Optical Fibers;100
10.4;4.4 Single-Mode Optical Fibers;103
10.5;4.5 Network Passives;112
10.6;4.6 Linear Optical Transmitters;115
10.7;4.7 Optical Amplifiers;123
10.8;4.8 Optical Receivers;125
10.9;4.9 Interactions among Transmitters, Fibers, and Receivers;127
10.10;4.10 End-to-End Fiber-Optic Link Performance;130
10.11;4.11 Summary;137
11;Chapter 5: Wavelength Division Multiplexing;140
11.1;5.1 Introduction;140
11.2;5.2 Wavelength Multiplexing: WWDM, CWDM, and DWDM;140
11.3;5.3 Components for WDM Systems;143
11.4;5.4 WDM-Specific Design Factors;145
11.5;5.5 Crosstalk Mechanisms;147
11.6;5.6 CSO due to Transmitter Chirp Combined with Imperfect Channel Flatness;165
11.7;5.7 Degradation in Shared-Detector, Multi-Wavelength Systems;167
11.8;5.8 Summary;172
12;Chapter 6: Linear Microwave Signal Transportation;174
12.1;6.1 Introduction;174
12.2;6.2 U.S. Regulation of Microwave Transmission;175
12.3;6.3 General Operational Principles;175
12.4;6.4 Path Design;179
12.5;6.5 Performance Calculation;185
12.6;6.6 Link Availability Factors;189
12.7;6.7 Summary;197
13;Chapter 7: End-to-End Performance;198
13.1;7.1 Introduction;198
13.2;7.2 Quality Standards and Requirements;198
13.3;7.3 Performance Allocations among Sections of Cable Systems;204
13.4;7.4 Noise and Distortion Allocations in Cable Systems;205
13.5;7.5 Typical Network Transmission Quality under Operational Conditions;209
13.6;7.6 Summary;225
14;Chapter 8: Upstream Issues;228
14.1;8.1 Introduction;228
14.2;8.2 The Two-Way Node;229
14.3;8.3 Downstream and Upstream Frequency Partitioning;230
14.4;8.4 Group Delay of Diplex Filters;231
14.5;8.5 Splitting the Node in the Upstream Direction;232
14.6;8.6 Return Signal Level Issues;236
14.7;8.7 Optional Ways to Specify Return Lasers;243
14.8;8.8 Characteristics of Return Lasers;249
14.9;8.9 Return Path Combining at the Headend;252
14.10;8.10 Spurious Signals in the Return Path;254
14.11;8.11 Characteristics of a Composite Reverse Signal;259
14.12;8.12 Reaction of Active Components to Signal Characteristics;261
14.13;8.13 Common Path Distortion;262
14.14;8.14 Return Path Interference Mitigation Techniques;263
14.15;8.15 Upstream Signal Power Apportionment;267
14.16;8.16 Practical Level Setting;272
14.17;8.17 Summary;276
15;Chapter 9: Architectural Requirements and Techniques;278
15.1;9.1 Introduction;278
15.2;9.2 Performance Parameters;279
15.3;9.3 Requirements by Service Type;297
15.4;9.4 Scalability;309
15.5;9.5 Summary;309
16;Chapter 10: Architectural Elements and Examples;312
16.1;10.1 Introduction;312
16.2;10.2 Architectural Elements;312
16.3;10.3 Architectural Examples;322
16.4;10.4 Summary;332
17;Chapter 11: Emerging Architectures;334
17.1;11.1 Introduction;334
17.2;11.2 Analog and Digital Optical Modulation;334
17.3;11.3 Combining Analog and Digital Transmission on the Same Fiber;339
17.4;11.4 Bidirectional Transmission;340
17.5;11.5 Fiber-Deep Architectures;341
17.6;11.6 Classifying Fiber-to-the-Home Systems;346
17.7;11.7 Distance Limitations;349
17.8;11.8 Limitations on Analog Transmission Distance;352
17.9;11.9 Limitations on Digital Transmission Distance;355
17.10;11.10 Low-Frequency Content Removal in Digital Transmission;358
17.11;11.11 Summary;359
18;Chapter 12: Network Reliability and Availability;360
18.1;12.1 Introduction;360
18.2;12.2 History and Benchmarking;361
18.3;12.3 Definitions and Basic Calculations;363
18.4;12.4 Effects of Redundant Network Connections;366
18.5;12.5 Absolute versus User-Perceived Parameters;367
18.6;12.6 Network Analysis;369
18.7;12.7 Analysis of a Typical HFC Network;380
18.8;12.8 Summary;387
19;Appendix: Channel Allocation;390
20;Glossary;398
21;Index;414