Presentation explaining the main types of wireless connections, such as Wi-Fi, Bluetooth, RFID tags and WiMax.

1. Wireless connections
Alicia Atalaya
4ºA
2015-2016

2. Index
1. Bluetooth
i. FHSS
ii. How is connection
stablished?
iii. Use
2. Wi-Fi
i. Wi-Fi Alliance
ii. IEEE 802.11
iii. Therminology
iv. Use
3. WiMax
i. What is it?
ii. How does it work?
iii. Use
4. RFID
i. What is it?
ii. How does it work?
iii. Use of RFID tags

3. Bluetooth

4. 1.1 FHSS (Frequency Hopping Spread Spectrum)
• Divides the 2.402-2.480 GHz in 79 hopps, 1 MZs
wide each one.
• This way it avoids radio interferences.
Bluetooth

5. 1.2 How is connection stablished?
1. Passive mode
2. Request: search for access points
3. Pagination: synchronisation with access points
4. Discovery of the access point
5. Creation of a hop with the access point
6. Pairing through PIN
7. Use of the network
Bluetooth

6. Use
• File transference
• Wireless peripherals
• Hardware
• Listening to music in the car
Bluetooth

7. Index
1. Bluetooth
i. FHSS
ii. How is connection
stablished?
iii. Use
2. Wi-Fi
i. Wi-Fi Alliance
ii. IEEE 802.11
iii. Therminology
iv. Use
3. WiMax
i. What is it?
ii. How does it work?
iii. Use
4. RFID
i. What is it?
ii. How does it work?
iii. Use of RFID tags

8. Wi-Fi
Wireless Fidelity

9. Wi-Fi Alliance
• Wi-Fi is a registered brand from the Wi-Fi
Alliance, who makes sure the connections follow
the IEEE 802.11 standart.
Wi-Fi

10. IEEE 802.11
• 802.11a transmits 5GHz and can reach the 54
megabits per second.
• 802.11b transmits 2’4GHz and can reach 11
megabits per second.
Wi-Fi

11. Therminology (I)
• IP access (Internet Protocol acess):
identificator.
• Gateway: IP from the device.
• DNS hosting service (Domain Name System):
system used to translate the IP directions
from all recognisible severs.
• AP (Access Point): device that interconects the
wireless network with the «real» network.
Wi-Fi

12. Therminology (II)
Wi-Fi
• SSID: the name you give to your network, for
example, PabloWifiCasa.
• WEP/WPA/WPA2/PSK: coded technology
names for access passwords, you need some
credentials, every network may use a different
one.
• Open networks: no password Wi-Fi.

13. Use
• Internet access
• Turn smartphones into remote controls
• Print stuff
• Share PC and smartphone connections
• Connect with smart TVs
Wi-Fi

14. Index
1. Bluetooth
i. FHSS
ii. How is connection
stablished?
iii. Use
2. Wi-Fi
i. Wi-Fi Alliance
ii. IEEE 802.11
iii. Therminology
iv. Use
3. WiMax
i. What is it?
ii. How does it work?
iii. Use
4. RFID
i. What is it?
ii. How does it work?
iii. Use of RFID tags

15. WiMax
Worlwide Interoperability for
Microwave Access

16. What is it?
• Is a wireless communication standard designed
to provide 30-40 megabit per second data rates.
• It allows wide broad connection in rural zones
where optical fiber turns out to be unaffordable.
WiMax

17. How does it work?
• It uses the frequencies 2’3-3’5 GHz, through
microwaves and radio waves transmision, this
standart is IEEE 802.16.
• The base station is the most important part of
the transmission.
WiMax

18. Use
• Pymes
• Cars
• Smartphones
• Militar applications
• Medical applications
• Natural disasters
• Rural places
WiMax

19. Index
1. Bluetooth
i. FHSS
ii. How is connection
stablished?
iii. Use
2. Wi-Fi
i. Wi-Fi Alliance
ii. IEEE 802.11
iii. Therminology
iv. Use
3. WiMax
i. What is it?
ii. How does it work?
iii. Use
4. RFID
i. What is it?
ii. How does it work?
iii. Use of RFID tags

20. RFID
Radio Frequency IDentification

21. What is it?
• It’s a storing and recovering remote data system
that uses tags.
• It transmits the ID (remember ID from
Therminology (I)) of an object through
radiowaves.
RFID

22. How does it work?
• Passively: RFID tags
receive a signal and create
an electromagnetical force
that is a way of response.
It is detected in less than 2
meters.
• Actively: RFID tags
incorporate a battery and
create a signal that can be
detected in 30 meters.
RFID

23. Use of RFID tags
• Shops
• Amusement Parks: No-swipe ticket passes
• Sports: Loss-resistant golf balls
• Health care: an hygiene solution
RFID

24. Bibliography
• tuexperto.com
• www.informatica-
hoy.com.ar
• www.taringa.net
• es.wikipedia.org
• en.wikipedia.org
• planetared.com
• www.internet-satelite.eu
• www.comparaiso.es
• www.areatecnologia.com
• www.rfidarena.com
• image.slidesharecdn.co
m
• www.keyscorner.com
• www.montajeselectricos
centeno.com
• cdn.flaticon.com
• technologythisweek.net