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Johnnakagami (talk | contribs) m I added a calculator that converts from RSSI to dBm. RSSI values are vendor specific and this turns a non-standard value to a standard power quantity number |
GreenC bot (talk | contribs) Rescued 1 archive link. Wayback Medic 2.5 per WP:URLREQ#ieee.org |
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=== Received channel power indicator ===
For the most part, 802.11 RSSI has been replaced with ''received channel power indicator'' (''RCPI''). RCPI is an 802.11<ref name=":0">{{cite web|url=http://standards.ieee.org/getieee802/802.11.html |archive-url=https://archive.today/20100813230349/http://standards.ieee.org/getieee802/802.11.html |url-status=dead |archive-date=August 13, 2010 |title=IEEE 802.11-2012 |publisher=IEEE |date=2012-03-29 |accessdate=2013-02-11}}</ref> measure of the received [[radio frequency]] [[Power (physics)|power]] in a selected [[Channel (communications)|channel]] over the preamble ''and'' the entire received [[Frame (telecommunications)|frame]], and has defined absolute levels of accuracy and resolution. RCPI is exclusively associated with [[802.11]] and as such has some accuracy and resolution enforced on it through [[IEEE 802.11k-2008]]. Received signal power level assessment is a necessary step in establishing a link for communication between wireless nodes. However, a power level metric like RCPI generally cannot comment on the ''quality'' of the link like other metrics such as travel time measurement ([[time of arrival]]).
== Uses in indoor localization ==
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