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Wi-Fi positioning system (WPS, WiPS or WFPS) is a geolocation system that uses the characteristics of nearby Wi‑Fi access points to discover where a device is located. [1]It is used where satellite navigation such as GPS is inadequate due to various causes including multipath and signal blockage indoors, or where acquiring a satellite fix would take too long. [2]
WiGLE (Wireless Geographic Logging Engine) is a website for collecting information about the different wireless hotspots around the world. Users can register on the website and upload hotspot data like GPS coordinates, SSID, MAC address and the encryption type used on the hotspots discovered.
Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
A near-me area network is a logical grouping of communication devices that are in close physical proximity to each other, but not necessarily connected to the same communication network infrastructure. Thus, two smartphones connected via different mobile carriers may form a near-me area network. [1] [citation needed]
Delhi - free Wi-Fi service in Delhi's Khan Market (August 2014), [21] free WiFi service in Delhi's Connaught Place (November 2014), [22] free Wi-Fi service at New Delhi Railway Station (December 2014) [23] Greater Noida — paid, operated by Maksat Technologies (P) Ltd. [citation needed] Kolkata, India - free 4G service by Reliance Jio ...
Long-range Wi-Fi is used for low-cost, unregulated point-to-point computer network connections, as an alternative to other fixed wireless, cellular networks or satellite Internet access. Wi-Fi networks have a range that's limited by the frequency, transmission power, antenna type, the location they're used in, and the environment. [ 1 ]
Wi-Fi (/ ˈ w aɪ f aɪ /) [1] [a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.
[6] [9] The Wi-Fi signal was detectable from a radius of a few hundred feet (about 100m). Two of New York City's largest advertising companies—Van Wagner and Titan , who collectively owned more than 9,000 of New York City's 12,000 payphones at the time—paid $2,000 per router, [ 6 ] with no monetary input from either the city or taxpayers. [ 9 ]