Carrier sense multiple access (CSMA) is a probabilistic media access control (MAC) protocol in which a node verifies the absence of other traffic before transmitting on a shared transmission medium, such as an electrical bus, or a band of the electromagnetic spectrum. Carrier sense means that a transmitter uses feedback from a receiver to determin...
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http://en.wikipedia.org/wiki/Carrier_sense_multiple_access
(from the article `telecommunications network`) One random-access method that reduces the chance of collisions is called carrier sense multiple access (CSMA). In this method a node listens to the ...
Found on
http://www.britannica.com/eb/a-z/c/29
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