Communication Networks Lab Report
Yisu Wang
B633491
Introduction
Wi-Fi is a kind of wireless communication technology, which allows electronic devices
to connect with the Wireless Local Area Networks(WLAN). Wi-Fi networks consists
clients including mobile phones and computers, and APs(access points) which organize
all communications between clients.
The standard of Wi-Fi is 802.11. 802.11 standard has three types of frames: data,
control, management. Data Link Layer processes packets of Network Layer into data
frames to transmit. Besides, APs implement RTS/CTS and ACK protocols to solve
hiden station problem and avoid collision by using control frames. And management
frames are used to establish and maintain connections between clients and APs.
Experimental Setup
In this experiment, we used Fluke Networks OptiView Wireless Network
Analyzer to analyse two LANs. One is our department’s (Loughborough
University) Wi-Fi: eduroam. The other one is a Wi-Fi spot that we build
by using our phone as an AP and others’ devices as clients.
