Chapter 6: Wireless and Mobile Networks
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Problems
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Decreased signal strength
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Interference, noise
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Multipath propagation
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Elements
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Wireless hosts
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Base stations
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Wireless links
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Infrastructure and ad hoc modes
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Protocols
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802.11 - short range
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Base station = access point
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Association
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Carrier Sense Multiple Access with Collision Avoidance
(CSMA/CA)
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Rate adaptation to improve bit error rate
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Power management
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WiMAX - longer range
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Mobility
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Home network, home agent, permanent address
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Visited network, foreign agent, care-of address
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Direct and indirect routing