1. Wireless Communications WLAN Miguel Durand Dap02s

2. Structure of the Presentation ► Introduction ► Terms ► Wi-Fi WLAN  Standards  Range  Security  Hot Spot ► Conclusion ► Opponent’s Session

3. Introduction ► Original Idea ► Reason Of The Topic

4. Terms ► 802.11 ► Access Point ► ad-hoc mode ► Antenna Gain ► Dual Band Radio ► IEEE ► ISM band ► Hot Spot ► Router ► OFDM ► Spread Spectrum ► SSID ►UWB ►WAN ►Warchalking ►Wardriving ►WECA ►WEP ►Wi-Fi ►Wireless Bridging ►Wireless Channel ►WPA ►WPAN

5. The Wi-Fi Technology

6. What is Wi-Fi Certification?

7. Standards Standard Data Rate IEEEIEEE 802.11 802.11 IEEE802.11 Up to 2Mbps in the 2.4GHz band IEEEIEEE 802.11a (Wi-Fi) 802.11aWi-Fi IEEE802.11aWi-Fi Up to 54Mbps in the 5GHz band IEEEIEEE 802.11b (Wi-Fi) 802.11bWi-Fi IEEE802.11bWi-Fi Up to 11Mbps in the 2.4GHz band IEEEIEEE 802.11g (Wi-Fi) 802.11gWi-Fi IEEE802.11gWi-Fi Up to 54Mbps in the 2.4GHz band Bluetooth Up to 2Mbps in the 2.45GHz band HomeRF Up to 10Mbps in the 2.4GHZ band HiperLAN/1 (Europe) Up to 20Mbps in the 5GHz band HiperLAN/2 (Europe) Up to 54Mbps in the 5GHz band

8. ► Overview ► What is the difference between a wireless gateway and a wireless access point? ► What is the range of a wireless network?  Improve the range ► How do I make my network secure

9. Security

10. ► How does the antenna affect wireless LAN security? ► What are the major security risks on 802.11b? ► What are insertion attacks?  Plug in Unauthorized Clients  Plug in Unauthorized Base Station ► SSID  WEP

11. Advice for beginners ► Change Your Name ► Turn Off SSID ► Protect your intranet ► Block unknown devices ► Enable WEP

12. The Future Of WLAN ► Wireless By The Letters ► To The Max

13. Hot Spot

14. ► What is a Hot Spot? ► Few Sites:  www.jiwire.com  www.wifinder.com/index.php  www.wi-fihotspotlist.com/

15. ► Opponent’s Session