Mobile Wi-Fi definition in bangladesh?

Wi-Fi, short for Wireless Fidelity, is a type of wireless technology known as a WLAN (Wireless Local Area Network). It enables high-speed data connections between mobile devices such as laptops, PDAs, and phones, and nearby Wi-Fi access points, which are specialized hardware connected to a wired network.

The earlier version of Wi-Fi, called 802.11g, offers speeds of up to 54Mbps and is compatible with the older 802.11b standard, providing speeds of up to 11Mbps.

A more recent standard, 802.11n, provides speeds of up to 150Mbps per channel or up to 600Mbps in total. It can operate in either the 2.4 GHz or 5 GHz frequency bands, although devices need to have dual-band antennas to utilize both frequencies.

In 2013, the latest Wi-Fi standard, known as 802.11ac, was introduced. It supports speeds of up to 500 Mbps per channel and over 1Gbps in total. Wi-Fi 802.11ac exclusively operates on the 5GHz band.

Compared to cellular network technologies like GPRS, EDGE, UMTS, and HSDPA, Wi-Fi offers significantly faster data speeds.

The coverage range of a Wi-Fi access point typically extends from 30 to 100 meters indoors, while outdoors, a single access point can cover approximately 650 meters.

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