Vault sync: 2021-11-03 23:46:47

School/Analyse/Layers/2. Datalink Layer.md

@@ -32,3 +32,23 @@ Ethernet frame has the following format:
 ![[ethernet-frame.png]]
 
 ## Wireless networks
+Wireless networks do not use a physical medium for data transmission. The data is send through radio waves.
+
+- Each member of a wireless network is called a station.
+
+Networks are implemented in different sizes:
+- Wireless local area networks (WLAN)
+- Wireless Metropolitan Area Networks (WMAN)
+- Wireless Wide Area Networks (WWAN)
+
+### BSS Network
+A BSS is a network with a specific station called Access Point.
+
+All transmissions from a station to another are trough the Access Point.
+
+Access Points also connect the network (BSS) other networks, hence the name internet. 
+
+### AD-HOC Networks
+AD-HOC networks do not have a central node (access point).
+
+Every station can send data direct