LYU9903
QoS Schemes in Wireless Networks
Ho Pun Mo & Ng Maggie
Supervised by Prof. Lyu R.T. Michael
6 December, 1999
Outline
Introduction
Wireless Networks
QoS
Performance Evaluation
QoS in Wireless Networks
Application - Video
Future Work
Introduction
Concern about QoS and wireless networks
QoS is not as simple as one would think
Platform we choose is Linux
Focus on:
investigating and analyzing QoS schemes on wireless networks
measuring and comparing performance on wired/wireless networks
Wireless Networks
Wireless Local Area Networks
(Wireless LANs)
Wireless Wide Area Networks
(Wireless WANs)
Wireless LANs
Extension to /Alternative for Wired Network
IEEE 802.11 standard
Using Radio Frequency (RF)
connected as infrastructure network
Wireless LANs
What is Infrastructure Network
Wired vs Wireless Networks
different physical & datalink protocols
different hardware
wireless networks: Roaming
different performance
Why Wireless
Importance of Wireless LANs:
increasing of mobility
Trend of Wireless LANs:

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