文档介绍：Chapter 6 Wireless and works
working: A Top Down Approach Featuring the , 3rd edition. Jim Kurose, Keith Ross Addison-Wesley, July 2004.
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6: Wireless and works
Chapter 6: Wireless and works
Background:
# wireless (mobile) phone subscribers now exceeds # wired phone subscribers!
s: laptops, palmtops, PDAs, -enabled phone promise anytime untethered access
two important (but different) munication over wireless link
handling mobile user who changes point of attachment work
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6: Wireless and works
Chapter 6 outline
Introduction
Wireless
Wireless links, characteristics
CDMA
IEEE wireless LANs (“wi-fi”)
Cellular Access
architecture
standards (., GSM)
Mobility
Principles: addressing and routing to mobile users
Mobile IP
Handling mobility in works
Mobility and higher-layer protocols
Summary
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6: Wireless and works
Elements of a work
network
infrastructure
wireless hosts
laptop, PDA, IP phone
run applications
may be stationary (non-mobile) or mobile
wireless does not always mean mobility
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6: Wireless and works
Elements of a work
network
infrastructure
base station
typically connected to work
relay - responsible for sending p