ENVS 1200 Lecture Notes - Lecture 14: Wireless, Forouzan, Channel (Communications)
13 May 2018
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ENVS 1200 Tutorial 14 Notes – Communication channel technology
Introduction
• Two well-regarded books are by Armitage [ARM00] and Ferguson and Huston [HUST98].
• Stallings [STAL09], Kurose [KUR08], and Forouzan [FOR07] all provide substantial
coverage of network security.
• Forouzan is the most technical, offering detailed explanations of encryption techniques.
• There are numerous books devoted exclusively to network security.
• One of many readable choices is Cheswick [CHES03].
• We introduced the concept of a communication channel.
• We noted that communication channels are fundamental to modern technology,
whether we are discussing wired networks, wireless networks, a backbone of the
Internet, cell phones, satellite television, or even your TV remote control.
• The discussions of channels presents features of the channel, introduces channel media
and shows how communication channels and channel segments—or links—are
interconnected to build networks.
• The discussion by introducing the fundamental technology of communication channels
• After we have introduced the technology, we will apply the technology to offer an
understanding of wireless data communication.
• First, we review some of the characteristics and features of the channel that are
governed most directly by the technology.
• We have carefully differentiated between end-to-end channels and channels that are
links.
• Since the technology can differ from link to link, we note that the emphasis in this
chapter is almost entirely on channels that are individual links.
• The major topics of interest include the signaling methods used to represent data,
interaction between the signaling methods and the choice of media, and the
characteristics of channels.
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