Wireless networksppt

Wireless Networks Authors: MUTHUKUMAR

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

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]

Wireless networksppt

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