Aimed at communications professionals in areas such as business, strategic planning, and network management and analysis, this work offers a straightforward explanation of quickly changing, complex technologies, in the context of understanding the emerging systems of the 21st century. The fundamentals of transmission systems, data communications protocols and carrier options are explained, and the development of network convergence, including interactive applications and the Internet, is traced. The book also describes the technology and regulatory concepts underlying the evolution of contemporary voice, data and video networks.
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A comprehensive overview of today′s networked world, offering just the right amount of technical detail
Now updated to cover the latest wireless and broadband technologies, this lucid overview describes today′s communications systems and networks–voice, data, video, and multimedia–and explains how they are likely to evolve and converge. Communications Systems and Networks delivers plain–English explanations of all the technical fundamentals–and puts everything in context by addressing standards, regulations, and the real–world outlook for legacy, contemporary, and emerging technologies. Whether you′re a networking pro who wants to gain some perspective or you just want to understand our increasingly interconnected world, this is the one book you need to see the big picture.
Inside, you′ll find clear explanations of:
∗ Essential concepts such as circuits, switches, and digital and analog transmission
∗ Transmission media––from twistedpair to satellite, microwave, infrared, and fiber optics
∗ Data communications, from LANs and WANs to broadband and 3G wireless
∗ Recent and emerging voice technologies, including Voice over Frame Relay (VoFR), Voice over ATM (VoATM), Voice over IP (VoIP), and Voice over DSL (VoDSL)
∗ Broadband access technologies, including Digital Subscriber Line (DSL), cable modems, Free Space Optics (FSO), and Wireless Local Loop (WLL)
∗ Internet and Web standards, topology, technologies, and protocols, including WAP and i–Mode
∗ Video and multimedia networking, from HDTV to videoconferencing systems
∗ Network convergence issues, such as standards, regulation, addressing, and Quality of Service (QoS)
∗ The latest regulatory flash points, from line sharing to Internet wiretapping
∗ Convergence is confusing. Convergence is critical. And convergence is real. In this book, industry pundit Ray Horak describes how the merging of voice and data networks has evolved and is likely to evolve as we move toward an information–based economy.
∗ Beginning with the fundamentals of communications technology, the book grounds the reader in basic telecommunications concepts including circuits (dedicated, switched and virtual), switches (circuit, packet, and frame), and the issues involved in digital and analog transmission.
∗ Describes the rudiments of transmission media, from twisted pair and coaxial cable to satellite and fiber–optic transmission.
∗ Introduces the basics of voice systems, beginning with legacy networks like key telephone systems and including PBXs, Centrex, Automatic Call Distributors, and Computer Telephony Integration (CTI).
∗ Explains the fundamentals of data communications, including basic LAN and WAN engineering, modems and other forms of data communications equipment, broadband infrastructure and network services, and the protocols and equipment that make the global Internet a reality.
∗ Considers some of the emerging technologies and applications just now gaining widespread acceptance, including wireless networks and digital video networks, along with the economic and regulatory forces likely to determine the shape of the networked world of the 21st Century, as well as the speed with which we can expect to see it implemented.
∗ Previous edition sold 40,000+ copies.
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