Szerokopasmowe (bezprzewodowe) sieci dostępowe

Szerokopasmowe mobilne sieci dostępowe Bartosz Lewandowski Poznańskie Centrum Superkomputerowo-Sieciowe

Plan ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GPRS/EDGE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

UMTS (WCDMA) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

LTE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

WiMAX ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

WiMAX - standardy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

WiFi ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11 B ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],2 1 3 4 5 6 7 8 9 10 11 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 Kanał Średnia częst. (GHz) 5 MHz

802.11 A ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11 G ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11B/G vs. 802.11A 54 Mbps 48 Mbps 36 Mbps 24 Mbps 12 Mbps 2 Mbps 5.5 Mbps 11 Mbps 802.11a 802.11b Zasięg Działania

Kanały w sieciach WiFi ,[object Object],[object Object],[object Object],[object Object]

Problemy – wielu użytkowników ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],C B A

802.11 N ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

802.11 V – zarządzanie klientami ,[object Object],[object Object]

Kwestie prawne ,[object Object],[object Object],[object Object],[object Object]

Zagrożenia w sieci WiFi (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Zagrożenia w sieci WiFi (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Zabezpieczenia sieci WiFi ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Zabezpieczenia sieci WiFi: Otwarty i Otwarty WebAAA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Zabezpieczenia sieci WiFi: Listy L2 ,[object Object],[object Object],[object Object],[object Object]

Zabezpieczenia sieci WiFi: Shared – Wireless Equivalent Privacy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Zabezpieczenia sieci WiFi: WEP - problemy ,[object Object],[object Object],[object Object],[object Object],[object Object]

Zabezpieczenia sieci WiFi: WEP - WPA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Zabezpieczenia sieci WiFi: …

Wireless Gigabit (short range wi-fi) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Szerokopasmowe (bezprzewodowe) sieci dostępowe

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to Szerokopasmowe (bezprzewodowe) sieci dostępowe

Similar to Szerokopasmowe (bezprzewodowe) sieci dostępowe (20)

More from bartekel

More from bartekel (14)

Szerokopasmowe (bezprzewodowe) sieci dostępowe