Offline networking: Difference between revisions

WiFi (or Wi-Fi) refers to a collection of wireless protocols from the 802.11 collection of standards. WiFi is predominantly used for low power, short range networking, and centers around 2 popular bands, 2.4GHz and the faster 5GHz<ref>https://en.wikipedia.org/wiki/Wi-Fi</ref>. In 2019, it was found more than 3.05 billion Wi-Fi-enabled devices are shipped globally each year<ref>https://www.researchandmarkets.com/reports/5135535/global-wi-fi-enabled-devices-shipment-forecast</ref>. Each of these devices can connect to any wireless access point which is open, or for which they are authenticated. This presents a significant opportunity for the distribution of critical information where Internet access is otherwise not available.