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Wireless Networks Authors: Darshpreet singh Bathinda,20-jan-2010 Technical University of punjab Roll no. 100390391235

Presentation Outline ,[object Object],[object Object],[object Object],[object Object]

Wireless? ,[object Object],[object Object],[object Object]

Common Topologies ,[object Object],[object Object],[object Object]

Common Topologies ,[object Object],[object Object],[object Object],[object Object],[object Object]

How do wireless LANs work? ,[object Object],[object Object],[object Object],[object Object]

How are WLANs Different? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Physical and Data Link Layers ,[object Object],[object Object],[object Object],[object Object]

Integration With Existing Networks ,[object Object],[object Object]

Integration With Existing Networks

Roaming ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Security ,[object Object],[object Object]

Interoperability ,[object Object],[object Object],[object Object],[object Object]

Hardware ,[object Object],[object Object],[object Object],[object Object]

Hardware CISCO Aironet 350 series Wireless Handheld Terminal Semi Parabolic Antenna BreezeCOM AP

Performance ,[object Object],[object Object],[object Object]

What is 802.11? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11 - Transmission ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Frequency Hopping Vs. Direct Sequence ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11a ,[object Object],[object Object],[object Object],[object Object]

802.11a Advantages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11a Disadvantages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11a Disadvantages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11a Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11a Vs. 802.11b DSSS technology OFDM technology Modulation ISM (2.4000— 2.4835 GHz range) UNII and ISM (5 GHz range) Bandwidth 100 Meters 50 Meters Range Up to 11 Mbps (11, 5.5, 2, and 1 Mbps) Up to 54 Mbps (54, 48, 36, 24,18, 12 and 6 Mbps) Raw data rates 802.11b 802.11a 802.11a vs. 802.11b

802.11g ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11g Advantages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11e Introduces Quality of Service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11f – Inter Access Point Protocol ,[object Object],[object Object],[object Object]

802.11b Security Features ,[object Object],[object Object],[object Object],[object Object],[object Object]

Authentication ,[object Object],[object Object],[object Object],[object Object]

Authentication ,[object Object]

Privacy ,[object Object],[object Object],[object Object],[object Object]

Data Integrity ,[object Object],[object Object]

Security Problems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Other WLAN Security Mechanisms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

WLAN Migration – Cutting The Cord ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Essential Questions ,[object Object],[object Object],[object Object]

Choose the right technology ,[object Object],[object Object],[object Object]

Data rates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Access Point Placement and Power ,[object Object],[object Object],[object Object],[object Object]

Antenna Selection and Placement ,[object Object],[object Object],[object Object],[object Object]

Connecting to the Wired LAN ,[object Object],[object Object],[object Object],[object Object]

The Site Survey ,[object Object],[object Object]

Vendor Information ,[object Object],[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object]

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