Carrier-sense multiple access with collision avoidance: Difference between revisions

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802.11 RTS/CTS implements "virtual carrier sensing" - see http://www.cs.ucla.edu/NRL/wireless/uploads/kxu_globecom02.pdf
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*[[Apple Computer|Apple's]] [[LocalTalk]] implemented '''CSMA/CA''' on an electrical bus using a three-byte jamming signal.
*[[802.11 RTS/CTS]] implements '''CSMA/CAvirtual carrier sensing''' using short '''Request to Send''' and '''Clear to Send''' messages for [[WLAN]]s ([[802.11]] mainly relies on '''physical carrier sensing''' though).
 
Compare use of the jamming signal in [[Carrier sense multiple access with collision detection]] ('''CSMA/CD'''), which uses another technique to improve '''CSMA''' performance.