Definition
A global area network (GAN) is a system of interconnected networks that cover a wide geographical area, like the internet. Unlike local area network (LAN) that covers smaller areas, GAN extends over global ranges. There are several existing GANs, including satellite networks and mobile broadband.
How Does a Global Area Network Work?
- GANs use ground facilities such as servers and satellite systems.
- Whenever you execute an action, such as sending a message or making a call, your device transmits that information to the closest connection point.
- The connection point transmits your data over long distances via a satellite, undersea cable, or other high-speed networks.
- The network guarantees that your data reaches its target, whether another phone, a computer, or a web server.
- Just like your data was transmitted, a response in the form of a message reply, a website, or the voice of a call is relayed back through the GAN.
- This is returned to your device through the nearest connection point so that you may view the website, listen to the voice, or read the message.
LAN vs. GAN
- A local area network (LAN): Connections in LAN are often limited to a small geographical area and are ideal for sharing local resources such as printers. LAN uses mediums such as Wi-Fi and Ethernet.
- A global area network (GAN): Conversely, GANs are spread across vast areas such as continents. They are transmitted via undersea cables or satellites to achieve efficient communication.
