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In [[telecommunication]]s, a '''carrier sense multiple access with collision avoidance''' ('''CSMA/CA''') is a [[computer network|network]] control [[communications protocol|protocol]] in which (a) a [[carrier]] sensing scheme is used, (b) a [[data]] station that intends to transmit sends a [[jam signal]], (c) after waiting a sufficient [[time]] for all stations to receive the jam signal, the data station transmits a [[frame (telecommunications)|frame]], and (d) while transmitting, if the data station detects a jam signal from another station, it stops transmitting for a random time and then tries again.
See also the similar [[Carrier sense multiple access with collision detection]] ('''CSMA/CD''') protocol.
Source: from [[Federal Standard 1037C]]
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