Hey everyone, thanks for coming back to Wi Fi fundamentals with location and analytics. This course will help you to muster the air. Before we dive in into the basic WiFi process, and understand how it all works, I decided to give you a head start on the key terms that are related directly to location and range. Let's start. A station is a client device connected to your Wi Fi network. It can be your smartphone, your laptop or just about any Wi Fi equipped device.
An access point is a networking device that allows the station to connect to the wire network and access point action acts as a bridge, it bridges between two main protocols. The first 180 211 is the protocol that every Wi Fi device uses. The second 180 2.3 is the Ethernet protocol. rssi stands for the received signal strength indicator. In other words, it actually means how much signal power amplitude is received at the other side. rssi indicates power in a dBm scale.
Ranging is the method that determines the distance between one device and the other. We will look at different ranging techniques starting from basic equations up to round trip time of flight. line of sight is something that is rare in WiFi deployment it actually means that this Signal propagates with no obstacles around. GPS is one technology that works within a line of sight. In Wi Fi radio signal usually moves around through obstacles to reach the other side which resides in multipath and other interferences. free space path loss describes the signal loss as it travels along the path.
Attenuation is the signal intensity reduction as it moves in space. Location algorithm is the function that converts the arranging the measurements to an estimated location. We will walk through different Friend location algorithms from triangulation to trilateration. Proximity is actually the nearest the nearest in space where the shoe devices the station and the AP can still hear each other. Next up RF wave