View source for IEEE 802.11ay

{{Short description|IEEE standard in bandwidth}}
{{use dmy dates|date=October 2024}}
'''IEEE 802.11ay''', ''Enhanced Throughput for Operation in License-exempt Bands above 45&nbsp;GHz'', is a follow-up to [[IEEE 802.11ad]] [[WiGig]] standard which quadruples the bandwidth and adds [[MIMO]] up to 8 streams.<ref name="Task Group ay">{{cite web|title=Status of Project IEEE 802.11ay|url=http://www.ieee802.org/11/Reports/tgay_update.htm|publisher=Institute of Electrical and Electronics Engineers|access-date=21 September 2020|archive-date=20 April 2016|archive-url=https://web.archive.org/web/20160420090605/http://www.ieee802.org/11/Reports/tgay_update.htm|url-status=live}}</ref><ref  name="11ayghasempour">{{Cite journal|title = IEEE 802.11ay: Next-Generation 60 GHz Communication for 100 Gb/s Wi-Fi|journal = IEEE Communications Magazine|volume = 55|issue = 12|pages = 186–192|last1=Ghasempour|first1=Yasaman |last2=Cordeiro|first2=Carlos |last3=Knightly|first3=Edward |date = 27 October 2017 |doi = 10.1109/MCOM.2017.1700393}}</ref> Development started in 2015 and the final standard IEEE 802.11ay-2021 was approved in March 2021.
==Technical details==
802.11ay is a type of WLAN in the [[IEEE 802.11]] family of [[Wi-Fi]] [[Wireless LAN|WLANs]]. It is an improvement on [[IEEE 802.11ad]] rather than a new standard.<ref>{{Cite news |last=Bradbury |first=Danny |date=26 May 2015 |title=Wi-Fi was MEANT to be this way: Antennas and standards, 802.11 style |url=https://www.theregister.co.uk/2015/05/26/802_11_wifi_through_years_feature/ |url-status=live |archive-url=https://web.archive.org/web/20160304082525/https://www.theregister.co.uk/2015/05/26/802_11_wifi_through_years_feature/ |archive-date=Mar 4, 2016 |access-date=10 January 2016 |work=The Register}}</ref><ref>{{Cite web |title=Status of IEEE 802.11 Next Generation 60GHz (NG60) Study Group |url=https://ieee802.org/11/Reports/ng60_update.htm |url-status=live |archive-url=https://web.archive.org/web/20231203214909/https://www.ieee802.org/11/Reports/ng60_update.htm |archive-date=Dec 3, 2023 |website=IEEE802}}</ref> It uses the 60&nbsp;GHz band<ref>{{Cite web |last=Danny Kuo |date=25 November 2015 |title=Digitimes Research: Next generation IEEE 802.11ay standards to come in 2017 |url=http://www.digitimes.com/news/a20151125PD203.html |access-date=10 January 2016 |website=DIGITIMES Asia |archive-date=26 November 2015 |archive-url=https://web.archive.org/web/20151126151737/http://www.digitimes.com/news/a20151125PD203.html |url-status=live }}</ref> and has a transmission rate of 20–40&nbsp;Gbit/s and an extended transmission distance of 300–500 meters. It includes mechanisms for [[channel bonding]] and [[MU-MIMO]] technologies.<ref name="11ayghasempour"/> It was originally expected to be released in 2017, but was delayed until 2021.<ref>{{Cite web |last=Mathias |first=Craig |date=2 Mar 2018 |title=Millimeter wave spectrum has key role in 802.11ay wireless |url=https://searchnetworking.techtarget.com/opinion/Millimeter-wave-spectrum-has-key-role-in-80211ay-wireless |url-status=live |archive-url=https://web.archive.org/web/20210804092132/https://searchnetworking.techtarget.com/opinion/Millimeter-wave-spectrum-has-key-role-in-80211ay-wireless |archive-date=Aug 4, 2021 |website=TechTarget}}</ref>
Where 802.11ad uses a maximum of 2.16&nbsp;GHz bandwidth, 802.11ay bonds four of those channels together for a maximum bandwidth of 8.64&nbsp;GHz. MIMO is also added with a maximum of four streams.<ref name="11ayghasempour"/> The link-rate per stream is 44 Gbit/s, with four streams this goes up to 176&nbsp;Gbit/s. Higher order modulation is also added, probably up to 256-QAM.<ref>{{Cite web |title=IEEE 802.11ay / NG60 – Next Generation 60 GHz |url=https://www.elektronik-kompendium.de/sites/net/2112051.htm |access-date=2017-02-20 |website=Elektronik-Kompendium.de |language=de-DE |archive-date=21 February 2017 |archive-url=https://web.archive.org/web/20170221010743/https://www.elektronik-kompendium.de/sites/net/2112051.htm |url-status=live }}</ref>
Applications could include replacement for [[Ethernet]] and other cables within offices or homes, and provide backhaul connectivity outside for service providers.<ref>{{Cite web |last=Brown |first=Bob |date=Mar 28, 2017 |title=802.11ay Wi-Fi: "It's going to be a very scalable spec" |url=https://www.networkworld.com/article/961804/802-11ay-wi-fi-it-s-going-to-be-a-very-scalable-spec.html |url-status=live |archive-url=https://web.archive.org/web/20240426183834/https://www.networkworld.com/article/961804/802-11ay-wi-fi-it-s-going-to-be-a-very-scalable-spec.html |archive-date=April 26, 2024 |website=Network World}}</ref>
802.11ay should not be confused with the similarly named [[802.11ax]] that was officially approved in 2021. The 802.11ay standard is designed to run at much higher frequencies. The lower frequency of 802.11ax enables it to penetrate walls somewhat, while 802.11ay is generally blocked by walls.<ref>{{Cite web |title=802.11ay wireless technology: Next-gen 60GHz WiFi |url=http://www.cablefree.net/wirelesstechnology/wireless-lan/ieee802-11ay |url-status=live |archive-url=https://web.archive.org/web/20240119160046/https://www.cablefree.net/wirelesstechnology/wireless-lan/ieee802-11ay/ |archive-date=Jan 19, 2024 |website=CableFree}}</ref>
{{60 GHz WiGig channels}}
== Draft versions ==
Draft version 0.1 of 802.11ay was released in January 2017, followed by draft version 0.2 in March 2017. Draft version 1.0 was made available in November 2017, and draft 1.2 was available as of April 2018.<ref name="Task Group ay"/><ref>{{Cite web|url=http://www.ieee802.org/11/Reports/802.11_Timelines.htm|title=IEEE 802.11, The Working Group Setting the Standards for Wireless LANs|website=www.ieee802.org|language=en|access-date=2018-05-27|archive-date=1 July 2017|archive-url=https://web.archive.org/web/20170701094002/http://www.ieee802.org/11/Reports/802.11_Timelines.htm|url-status=live}}</ref>
Draft version 7.0 was released in December 2020 and the Final 802 Working Group Approval was received in February 2021.<ref name="Task Group ay"/>
==See also==
* [[List of WLAN channels]]
* [[IEEE]]
==References==
{{Reflist}}
{{IEEE standards}}
==External links==
* [https://standards.ieee.org/ieee/802.11ay/6142/ IEEE 802.11ay-2021] — ''IEEE Standard for Information Technology — Telecommunications and Information Exchange between Systems Local and Metropolitan Area Networks — Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 2: Enhanced Throughput for Operation in License-exempt Bands above 45&nbsp;GHz.''
* [https://www.networkworld.com/article/961836/faq-what-is-80211ay-wireless-technology.html FAQ: What is 802.11ay wireless technology?]
* [https://ieee802.org/11/Reports/ng60_update.htm Status of IEEE 802.11 Next Generation 60&nbsp;GHz (NG60) Study Group]" at IEEE802
[[Category:Wireless networking]]