Introduction to telecommunications

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  • Telecommunications refers to long-distance communication (the Greek tele means "far off"). At present, such communication is carried out with the aid of electronic equipment such as the Radio, Telegraph, Telephone, and Television. In earlier times, however, smoke signals, drums, light beacons, and various forms of semaphore were used for the same purpose. The information that is transmitted can be in the form of voice, symbols, pictures, or data, or a combination of these.

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  • A compiler is a program that translates a source language text into an equivalent target language text. E.g. for a C compiler, the source language is C while the target language may be Sparc assembly language. Of course, one expects a compiler to do a faithful translation, i.e. the meaning of the translated text should be the same as the meaning of the source text.

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  • Telecommunications is one of the fastest growing business sectors of modern information technologies. A couple of decades ago, to have a basic understanding of telecommunications, it was enough to know how the telephone network operated. Today, the field of telecommunications encompasses a vast variety of modern technologies and services. Some services, such as the fixed telephone service in developed countries, have become mature, and some have been exploding (e.g., cellular mobile communications and the Internet).

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  • In this chapter, we will address the following questions: How are networks used to solve business problems? What are the primary components of a network? Why are network standards necessary? How does the Internet work? What are the benefits of wireless networks? What telecommunications problems might you encounter in a global setting?

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  • A book that writer feel can be useful to readers on the following fronts: as a textbook as well as a handbook, since it covers new systems and technologies, as a guide to broadband wireless access and cellular systems, as a reference book for executives, as a textbook for college seniors and graduate students.

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  • After studying this chapter you will be able to understand: What is the value of a single computer? Why are computer networks so important in today’s businesses? What components do you need to install to create a network? How can multiple users share a single network?,...

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  • Chapter 6 - Telecommunications and networks. The objectives of this chapter are: Understand the concept of a network; apply Metcalfe’s Law in understanding the value of a network; identify several major developments and trends in the industries, technologies, and business applications of telecommunications and Internet technologies;...

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  • This Xcode 4 Edition of iPhone iOS 4 Development Essentials contains 43 chapters of in-depth information on the development of apps for the iPhone fully updated for use with Xcode version 4. Beginning with the basics, this book provides an overview of the iPhone hardware and the architecture of both iOS 4 and the iOS SDK. An introduction to programming in Objective-C is provided followed by an in-depth look at the architecture of iPhone applications and the design of user interfaces.

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  • 1.Connect devices that are separated by a broader geographical area. 2.Use the services of carriers, such as telephone companies, network providers… 3.Use serial connections.A VPN is an encrypted connection between private networks over a public network such as the Internet. Instead of using a dedicated Layer 2 connection such as a leased line, a VPN uses virtual connections called VPN tunnels, which are routed through the Internet from the private network of the company to the remote site or employee host.

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  • Our first chapter puts LTE into its historical context, and lays out its requirements and key technical features. We begin by reviewing the architectures of UMTS and GSM, and by introducing some of the terminology that the two systems use. We then summarize the history of mobile telecommunication systems, discuss the issues that have driven the development of LTE, and show how UMTS has evolved first into LTE and then into an enhanced version known as LTE-Advanced. The chapter closes by reviewing the standardization process for LTE....

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  • The third generation (3G) mobile communication system is the next big thing in the world of mobile telecommunications. The first generation included analog mobile phones [e.g., Total Access Communications Systems (TACS), Nordic Mobile Telephone (NMT), and Advanced Mobile Phone Service (AMPS)], and the second generation (2G) included digital mobile phones [e.g., global system for mobile communications (GSM), personal digital cellular (PDC), and digital AMPS (D-AMPS)].

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  • This book is intended for courses at least at Masters level to provide an introduction to the field of signal processing in telecommunications. The text therefore deals mainly with source coding, channel coding, modulation and demodulation. Adaptive channel equalisation, the signal processing aspects of adaptive antennas as well as multi-user detectors for CDMA are also included. Shorter sections on link budget, synchronising and cryptography are also included. Network aspects are not discussed and very little is given about wave propagation.

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  • Technology development, mainly for telecommunications and computer systems, was a key factor for the interactivity and, thus, for the expansion of e-learning. This book is divided into two parts, presenting some proposals to deal with e-learning challenges, opening up a way of learning about and discussing new methodologies to increase the interaction level of classes and implementing technical tools for helping students to make better use of e-learning resources.

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  • IDC Technologies is internationally acknowledged as the premier provider of practical, technical training for engineers and technicians. We specialize in the fields of electrical systems, industrial data communications, telecommunications, automation and control, mechanical engineering, chemical and civil engineering, and are continually adding to our portfolio of over 60 different workshops. Our instructors are highly respected in their fields of expertise and in the last ten years have trained over 200,000 engineers, scientists and technicians....

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  • Chapter 5 introduce the networks and telecommunications. After completing this chapter, you will be able to understand: How do you protect your information resources? What are the primary threats to an information system? What primary options are used to provide computer security? What non-computer-based tools can be used to provide additional security?,...

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  • This chapter is designed to provide the student with an introduction to mobile telecommunications and an overview of the GSM standard. It introduces the main system components, the network structure and basic terminology used.

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  • Introduction to Broadband Wireless roadband wireless sits at the confluence of two of the most remarkable growth stories of the telecommunications industry in recent years. Both wireless and broadband have on their own enjoyed rapid mass-market adoption. Wireless mobile services grew from 11 million subscribers worldwide in 1990 to more than 2 billion in 2005 [1]. During the same period, the Internet grew from being a curious academic tool to having about a billion users.

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  • Thermoplastics can be used for various applications, which range from household articles to the aeronautic sector. This book, "Thermoplastic Elastomers", is comprised of nineteen chapters, written by specialized scientists dealing with physical and/or chemical modifications of thermoplastics and thermoplastic starch. Such studies will provide a great benefit to specialists in food, electric, telecommunication devices, and plastic industries. Each chapter provides a comprehensive introduction to a specific topic, with a survey of developments to date....

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  • Evolutionary Methods for the Design of Reliable Networks Alice E. Smith and Berna Dengiz Introduction to the Design Problem The problem of how to design a network so that certain constraints are met and one or more objectives are optimized is relevant in many real world applications in telecommunications (Abuali et al., 1994a; Jan et al., 1993; Koh and Lee, 1995; Walters and Smith, 1995), computer networking (Chopra et al., 1984; Pierre et al., 1995), water systems (Savic and Walters, 1995) and oil and gas lines (Goldberg, 1989).

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  • Growth naturally stimulates change, and CCTV technology has been no exception. A system that once merely required cameras, cabling, and video monitors has now become a complex electronic confi guration of equipment intertwined with both computer and telecommunications technologies. This dramatic change is directly related to the introduction of digital technology. Why do we need to understand how digital technology works, and what does it have to do with the future of security? It’s simple—the newest revolution in technology is pervasive computing.

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