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

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Revision as of 09:15, 24 March 2005

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In [[computer networking]], '''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.

CSMA/CA is a modification of pure [[Carrier Sense Multiple Access]] ('''CSMA'''). Please visit this article for a complete description of the basic protocol.