WMM

2. Seminar about
Wireless Multimedia
(WMM)
By:
Radhwan Mohammed Hussein Al-Jaki
Email: aljaki2@live.com

3. What is Multimedia ?
Multimedia

4. What is wireless ?
Methods of
data transfer

6. • Wireless communication is the
transfer of information between two
or more points that are not
connected by an electrical
conductor and doesn't has a cables
between them.
• The wireless technologies use radio
waves to transfer the data.

7. What is the difference between
Bluetooth and Wireless?
• Both Wi-Fi and Bluetooth are
wireless technologies that transmit
data by using radio frequency (RF)
signal, but the main differences
between these two are range, speed,
and cost

8. Advantages
and Disadvantages
of wireless

9. Advantages
ConvenienceMobilityProductivity
Deployment Expandability Cost

10. Disadvantages
SecuritySpeed
Reliability Range

11. Wireless Security

12. Wireless Security
WEP
WPA
WPA2
Wired Equivalent Privacy
Wi-Fi Protected
Access
Wi-Fi Protected Access 2

13. WEP
The original encryption protocol
developed for wireless networks. As
its name implies, WEP was designed
to provide the same level of security as
wired networks. However, WEP has
many well-known security flaws, is
difficult to configure, and is easily
broken.

14. WPA
Introduced as an interim security enhancement
over WEP while the 802.11i wireless security
standard was being developed. Most current
WPA implementations use a preshared key
(PSK), commonly referred to as WPA Personal,
and the Temporal Key Integrity Protocol
(TKIP, pronounced tee-kip) for encryption.
WPA Enterprise uses an authentication server to
generate keys or certificates.

15. WPA 2
Based on the 802.11i wireless security standard,
which was finalized in 2004. The most
significant enhancement to WPA2 over WPA is
the use of the Advanced Encryption Standard
(AES) for encryption. The security provided by
AES is sufficient (and approved) for use by the
U.S. government to encrypt information
classified as top secret — it’s probably good
enough to protect your secrets as well!

17. How does
wireless work?

18. Types Of wireless adapter cards
Asus_WL138gEIntel-PROSet-USB wireless
TLWN353GD

19. Device 1 Device 2
Wireless DriverWireless Driver
20m
Internet

20. Device 1 Device 2
Wireless DriverWireless Driver
Open
Internet

21. Device 1 Device 2
Wireless DriverWireless Driver
Sender Receiver
Request
Hi my name is device 1 and you ?
Internet

22. Device 1 Device 2
Wireless DriverWireless Driver
Sender Receiver
Accept
Hi I am device 2 and my password :123
Internet

23. Device 1 Device 2
Wireless DriverWireless Driver
Sender Receiver
Testing connection
Internet

24. Device 1 Device 2
Wireless DriverWireless Driver
Sender Receiver
Internet

25. Now what is wireless
multimedia?
It’s a process use wireless method to
transfer multimedia data
(text – picture -video – sound)
from point to another point.

26. Questions ?