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Optical switching and networking handbook
Before you begin to read this book, please take a moment to read these introductory comments. The title of the book may be misleading for many people: For the engineering person, this may sound like the bible of optical networks and switching systems. Not so! This is not an engineering book and will not dig into the gory details of bits and bytes, ohms and lamdas, and so on. It will help an engineering person to understand the marketplace for...
321 p dtu 15/11/2012 182 1
Từ khóa: Switching Systems Dynamic Routing, Telecommunications Networks, mạng viễn thông, Communications Broadband, công nghệ viễn thông, switching systems, hệ thống chuyển mạch
Next Generation Mobile Systems 3G and Beyond
The aim of this book is not to describe new wireless access technologies that will replace the third generation (3G) technologies, but to describe a complete ecosystem of technologies, including access technologies that will be essential for the development of a new mobile environment beyond the 3G era. The mobile applications currently envisioned for this future platform will be augmented by others that will arise because of the innovative...
406 p dtu 15/11/2012 216 1
Từ khóa: Mobile Systems 3G, access technologies, công nghệ truy cập, thông tin liên lạc, công nghệ viễn thông, kỹ thuật viễn thông
Networks and devices using planar transmissions lines
By “planar transmission line” we mean a transmission line whose conductors are on planes. Examples are microstrips and slotlines. By “device” we mean a component that is capable of having some electrical property in addition to the obvious “RF” connecting characteristic. Examples are directional couplers and phase shifters. All the devices we will study are made of planar transmission lines. By “network” we mean a set of...
671 p dtu 15/11/2012 188 1
Từ khóa: mạng viễn thông, planar transmissions lines, cộng nghệ mạng, kỹ thuật mạng, thông tin liên lạc, công nghệ viễn thông
This book is a crash course about broadband technology and services. It is not a textbook. The book lays a foundation of understanding about what broadband is and what it is not. It will not cover every broadband technology, but will address the popular and up-and-coming broadband technologies. Those who should be reading this book include: the technologist who does not understand what broadband is and needs a working understanding of the...
337 p dtu 10/11/2012 197 1
Từ khóa: Broadband Crash Course, broadband technology, Wide Area Networks, công nghệ mạng, công nghệ viễn thông, băng thông rộng
Satellites for communication services have evolved quite significantly in size and power since the launch of the first commercial satellites in 1965. This has permitted a consequent reduction in the size of earth stations, and hence their cost, with a consequent increase in number. Small stations, with antennas in the order of 1.2–1.8 rn, have become very popular under the acronym VSAT, which stands for ’Very Small Aperture Terminals’....
296 p dtu 10/11/2012 173 1
Từ khóa: communication services, commercial satellites, monitoring data, VSAT networks, mạng viễn thông, công nghệ viễn thông, hệ thống thông tin
Broadband Powerline Communications Networks Network Design
Access networks implement the inter-connection of the customers/subscribers to wide-area communication networks. They allow a large number of subscribers to use various telecommunications services. However, the costs of realization, installation, and maintenance of access networks are very high, very often representing more than 50% of the investment in the network. Therefore, network providers try to realize the access network at as low a...
292 p dtu 10/11/2012 166 1
Từ khóa: Communications Networks, Network Design, thiết kế mạng, công nghệ viễn thông, communication networks, truyền thông mạng
IP-Based Next-Generation Wireless Networks Systems, Architectures, and Protocols
Wireless networks are evolving into wireless IP (Internet Protocol) networks to overcome the limitations of traditional circuit-switched wireless networks. Wireless IP networks are more suitable for supporting the rapidly growing mobile data and multimedia applications. IP technologies bring the globally successful Internet service creation and offering paradigm to wireless networks, bringing the vast array of Internet services to mobile users...
438 p dtu 10/11/2012 181 1
Từ khóa: Wireless Networks Systems, Wireless networks, circuit-switched, công nghệ vô tuyến, công nghệ truyền thông, công nghệ viễn thông
Introduction to RF propagation
With the rapid expansion of wireless consumer products, there has been a considerable increase in the need for radio-frequency (RF) planning, link planning, and propagation modeling.A network designer with no RF background may find himself/herself designing a wireless network. A wide array of RF planning software packages can provide some support, but there is no substitute for a fundamental understanding of the propagation process and the...
349 p dtu 10/11/2012 181 1
Từ khóa: Introduction to RF propagation, radio-frequency, network designer, thiết kế mạng, công nghệ viễn thông, kỹ thuật mạng
Welcome to HDTV For Dummies. HDTV is the hottest technology to hit your local electronics store since the advent of cell phones. HDTVs are getting bigger, better, cheaper, more sophisticated, and more useful every day. Since you’ve bought this book, we figure that not only do you agree with us, you’re already part of the HDTV movement. To arms, Comrade! One of the most appealing things about the current crop of HDTVs is the ease with...
291 p dtu 09/11/2012 201 1
Từ khóa: HDTV, công nghệ viễn thông, kỹ thuật viễn thông, khoa học công nghệ, công nghệ hình ảnh, công nghệ âm thanh
Fixed broadband wireless system design
The growing demand for high-speed data connections to serve a variety of business and personal uses has driven an explosive growth in telecommunications technologies of all sorts including optical fiber, coaxial cable, twisted-pair telephone cables, and wireless. Nations have recognized that telecommunications infrastructure is as significant as roads, water systems, and electrical distribution in supporting economic growth. In developing...
529 p dtu 09/11/2012 198 1
Từ khóa: system design, Fixed broadband wireless, telecommunications technologies, công nghệ viễn thông, kỹ thuật thiết kế, kỹ thuật viễn thông
In order to be able to study this book, basic knowledge of probability theory and system theory is required, with which students at masters level are in general familiar. In order to simplify comprehension, the fundamental mathematical tools, which are relevant for the objectives of this book, are recapitulated at the beginning. Starting from this basic knowledge, nearly all statements made in this book are derived in detail, so that a high...
430 p dtu 09/11/2012 215 1
Từ khóa: Mobile fading channels, electrical engineering, radio communications, kỹ thuật điện, probability theory, công nghệ viễn thông, kỹ thuật viễn thông
GSM (Global System for Mobile communication) is a Worldwide Digital Cellular Communications Network. GSM is a Second Generation (2G) digital radio cellular network. Time Division Multiplexing / Multiple access (TDM/TDMA) are employed.
67 p dtu 09/11/2012 205 1
Từ khóa: Global System, Mobile communication, Communications Network, công nghệ viễn thông, kỹ thuật viễn thông, công nghệ GSM