Editing Wi-Fi (section)

=== MIMO (multiple-input and multiple-output) ===
{{Main|MIMO}}

Wi-Fi 4 and higher standards allow devices to have multiple antennas on transmitters and receivers. Multiple antennas enable the equipment to exploit [[multipath propagation]] on the same frequency bands giving much higher speeds and longer range.

Wi-Fi 4 can more than double the range over previous standards.<ref name=wifiplanet>{{cite web|url=http://www.wi-fiplanet.com/tutorials/article.php/3680781 |title=802.11n Delivers Better Range |date=31 May 2007 |work=Wi-Fi Planet |url-status=dead |archive-url=https://web.archive.org/web/20151108080354/http://www.wi-fiplanet.com/tutorials/article.php/3680781 |archive-date=8 November 2015 }}</ref>

The Wi-Fi 5 standard uses the 5&nbsp;GHz band exclusively, and is capable of multi-station WLAN throughput of at least 1 gigabit per second, and a single station throughput of at least 500&nbsp;Mbit/s. As of the first quarter of 2016, The Wi-Fi Alliance certifies devices compliant with the 802.11ac standard as "Wi-Fi CERTIFIED ac". This standard uses several signal processing techniques such as multi-user MIMO and 4X4 Spatial Multiplexing streams, and wide channel bandwidth (160&nbsp;MHz) to achieve its gigabit throughput. According to a study by IHS Technology, 70% of all access point sales revenue in the first quarter of 2016 came from 802.11ac devices.<ref>{{cite web|url=https://www.networkworld.com/article/3089508/80211ac-wi-fi-gear-driving-strong-wlan-equipment-sales.html|title=802.11ac Wi-Fi head driving strong WLAN equipment sales|last=Gold|first=Jon|date=29 June 2016|website=[[Network World]]|archive-url=https://web.archive.org/web/20190228004017/https://www.networkworld.com/article/3089508/80211ac-wi-fi-gear-driving-strong-wlan-equipment-sales.html|archive-date=28 February 2019|url-status=live|access-date=19 May 2017}}</ref>