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((Short description|WiFi specification))
((refimprove|date=December 2018))
'''IEEE 802.11k-2008''' is an amendment to [[IEEE 802.11-2007]] standard for [[radio resource measurement]].  It defines and exposes radio and network information to facilitate the management and maintenance of a mobile [[Wireless LAN]]. IEEE 802.11k was incorporated in IEEE Std 802.11-2012;<ref>((cite book|date=1 November 2012|journal= ISO/IEC/IEEE 8802-11:2012(E) (Revision of ISO/IEC/IEEE 8802-11-2005 and Amendments)|pages=1–2798|doi=10.1109/IEEESTD.2012.6361248|isbn=978-0-7381-8007-6 |title=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 ))</ref> see [[IEEE 802.11#802.11-2012|IEEE 802.11]].

==Radio Resource Measurement==
IEEE 802.11k and [[IEEE 802.11r|802.11r]] are industry standards that enable seamless Basic Service Set (BSS) transitions in the WLAN environment. The 802.11k standard provides information to discover the best available access point.

<!-- This detailed description needs a re-write --->
802.11k is intended to improve the way traffic is distributed within a network. In a wireless LAN, each device normally connects to the access point (AP) that provides the strongest signal. Depending on the number and geographic locations of the subscribers, this arrangement can sometimes lead to excessive demand on one AP and underutilization of others, resulting in degradation of overall network performance. In a network conforming to 802.11k, if the AP having the strongest signal is loaded to its full capacity, a wireless device is connected to one of the underutilized APs. Even though the signal may be weaker, the overall throughput is greater because more efficient use is made of the network resources.<ref name=NetworkWorldArticle>((cite web|url=http://www.networkworld.com/news/tech/2004/0329techupdate.html|work=[[Network World]]|title=802.11k makes WLANs measure up|last=Simone|first=Dan|date=2004-03-29|url-status=dead|archiveurl=https://web.archive.org/web/20060520064857/http://www.networkworld.com/news/tech/2004/0329techupdate.html|archivedate=2006-05-20))</ref>

==Protocol operation==
The following steps are performed before switching to a new access point.<ref name=NetworkWorldArticle />
#[[wireless access point|Access point]] determines that client is moving away from it.
#Informs client to prepare to switch to a new access point.
#Client requests list of nearby access points
#Access point gives site report
#Client moves to best access point based on report

==See also==
*[[IEEE 802.11v]]

==References==
((Reflist))

==External links==
*((cite book|url=http://ieeexplore.ieee.org/servlet/opac?punumber=4544752|doi=10.1109/IEEESTD.2008.4544755|isbn=978-0-7381-5421-3|journal=IEEE STD 802.11K-2008 (Amendment to IEEE STD 802.11-2007) |date=June 2008 |pages=1–244 |title=IEEE Standard for Information technology-- Local and metropolitan area networks-- Specific requirements-- Part 11: Wireless LAN Medium Access Control (MAC)and Physical Layer (PHY) Specifications Amendment 1: Radio Resource Measurement of Wireless LANs ))
*[http://grouper.ieee.org/groups/802/11/Reports/tgk_update.htm IEEE Task Group TGk]

((IEEE standards))

[[Category:IEEE 802.11|K]]
[[Category:Radio resource management]]

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