Knowledge Base

Title Authors Last Update Category
Simulating Gaussian Crosstalk for DSL Testing Timothy R. Clark

The presence of crosstalk is a major detriment to the performance of Digital Subscriber Line (DSL) transceivers. It is therefore important to test performance under a wide variety of crosstalk scenarios. This thesis presents the development of a crosstalk noise generation system as a tool for DSL performance testing. Where many commercially available solutions are limited to specific testing needs, the system presented here is universal and can simulate virtually any noise scenario conceivable for DSL deployment.
Several requirements for the accurate frequency domain modeling of DSL crosstalk are presented. The time domain properties of crosstalk were also studied with particular attention paid to the amplitude distribution. The importance of a Gaussian amplitude distribution and the limiting effect of a finite-length pseudo-random crosstalk sequence on the "tail" of the Gaussian distribution were investigated. A method of forcing finite-length crosstalk sequences to have a "near-Gaussian" amplitude distribution is proposed.

June 27, 2012 Theses
Fundamentals of DSL Technology Philip Golden, Herve Dedieu, Krista S. Jacobsen

From back of book: "Fundamentals of DSL Technology... combines the strengths of the field's most renowned DSL experts, providing a foundation of all aspects of DSL system design."

June 26, 2012 Recommended Textbooks
PPP Design, Implementation, and Debugging, Second Edition James Carlson

From the back cover: "PPP Design, Implementation, and Debugging, Second Edition, is a complete and convenient resrouce for netowrk system designers and administrators. This book contains everything you need to know to work with the Point-to-Point Protocol (PPP), one of the most important Internet protocols in use today. Inside you'll find clear explanations of the underlying concepts, practical implementation information, and valuable debugging techniques to keep your PPP connections running smoothly, efficiently, and uninterrupted."

June 26, 2012 Recommended Textbooks
DSL: Simulation Techniques and Standards Development for Digital Subscriber Line Systems Dr. Walter Y. Chen

From the back cover: "Digital Subscriber Line technology heralds the age of digital communication, providing a faster, more efficient method of transmitting data over regular telephone lines. The widespread adoption of DSL technology increases the demand for subject-specific, in-depth knowledge of this breakthrough in digital communication. DSL: Simulation Techniques and Standards Development for Digital Subscriber Line Systems arms the communications and networking engineer with the quintessential information for implementing DSL systems . . . "

June 26, 2012 Recommended Textbooks
Newton Harry Newton with Ray Horak contributing editor

From the back cover: "I wrote this book for those of us in the world's most exciting industries - telecommunications, networking and the Internet. I deliberately didn't write a book that only geeks could understand. I wrote a business book that you and I could understand. I explain the technical concepts in non-technical , business language that anyone in business (whether buying, selling or investing) should be able to understand. Some of my definitions are short. Some are encyclopedic. My focus is 720 practical. What the term means. What the technology does. What benefits the technology confers. which pitfalls to watch for. Use this book in your day-to-day business life. Dip into it before a meeting with a vendor, a customer, a broker or a boss. I've got 19 years in this book. My readers and my contributing editor, Ray Horak, have contributed enormously over the years. By now, all of us have made this dictionary pretty darn good. I'm proud of this edition."

June 26, 2012 Recommended Textbooks
DSL Advances Thomas Starr, Massimo Sorbara, John M. Cioffi, Peter Silverman

From back cover: "Digital Subscriber Lines (DSLs) have transformed millions of ordinary phone lines into broadband arteries that link homes and businesses to the Internet at megabit speeds. DSL Advances brings together the state-of-the-art in DSL technology and architecture for every technical professional and manager. The authors of the classic Understanding Digital Subscriber Line Technology review the key challenges service providers and equipment manufacturers face now, preview tomorrow's most important standards and technical enhancements, and offer new insights into today's regulatory and business environment."

June 26, 2012 Recommended Textbooks
Understanding Digital Subscriber Line Technology Thomas Starr, John M. Cioffi, Peter J. Silverman

From the back cover: "The basic infrastructure for the global broadband network of the future is already in place in most homes and offices. Ordinary telephone lines can provide low-cost, high volume access to the exploding world of telecommunications services that users increasingly rely on. Now, leading experts in the field hve come together to share their insights in a single volume, explaining the past, present, and future of all the DSL technologies."

June 26, 2012 Recommended Textbooks
Advanced Digital Signal Processing and Noise Reduction Saeed V. Vaseghi

From the back cover: "Signal processing and noise reduction are at the core of telecommunications and information processing systems. With the increasing use of digital cellular mobile systems in a variety of adverse environments, noise reduction is becoming a particularly important aspect of communication system design. This second edition provides a thoroughly revised and expanded introduction to the fundamentals of random processes, Bayesian modelling, and noise reduction. The subject is covered in a graphical and mathematically accessible manner with the emphasis on Bayesian inference and its application to noise reduction."

June 26, 2012 Recommended Textbooks
Digital Communications John G. Proakis

From the preface: "The third edition of Digital Communications has undergone a major reorganization. Compared with with the second edition, which had eight chapters, the third edition contains fifteen. Chapter 1 (Introduction) and Chapter 15 (Multiuser Communications) are new. Other new material that has been added includes a treatment of run-length-limited codes, Nakagami fading statistics, trellis codeing for fading channels, multicarrier modulation, and an expanded treatment of blind equalization. Since this is an introductory-level text, the treatment fo these topics is limited in scope. Some topics that were in the second edition have been deleted, including echo cancellation and suppression of narrowband interference in spread spectrum signals."

June 26, 2012 Recommended Textbooks
ADSL Tutorial Matthew Langlois (UNH-IOL)

This tutorial provides an overview of ADSL technology and focuses on the physical layer as defined in ANSI T1.413-1998. From the introduction: "The demand for high-speed data networks in the "last mile" has driven the need for robust, interoperable, and easy to use multi-vendor Digital Subscriber Line (DSL) access solutions. DSL collectively refers to a group of technologies that utilize the unused bandwidth in the existing copper access network to deliver high-speed data services from the distribution center, or central office, to the end user. DSL technology is attractive because it requires little to no upgrading of the existing copper infrastructure that connects nearly all populated locations in the world. In addition, DSL is inherently secure due to its point-to-point nature."

June 26, 2012 Tutorials