carrier sense - meaning and definition. What is carrier sense
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What (who) is carrier sense - definition

SYSTEM ALLOWING TRANSMITTERS TO TAKE TURNS ON A SHARED MEDIA
Carrier sense; Carrier Sense Multiple Access; Carrier sense multiple access

Carrier-sense multiple access         
Carrier-sense multiple access (CSMA) is a 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 multiple access with collision avoidance         
COMPUTER NETWORK MULTIPLE ACCESS METHOD
CSMA/CA; CSMA-CA; CSMA CA; Collision avoidance (networking); Carrier Sense Multiple Access With Collision Avoidance; CSMACA; Carrier sense multiple access with collision avoidance
Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a network multiple access method in which carrier sensing is used, but nodes attempt to avoid collisions by beginning transmission only after the channel is sensed to be "idle". When they do transmit, nodes transmit their packet data in its entirety.
common carrier         
PROFESSION
Common carriers; Common Carrier; Carrying for hire; Common carriage; Common carrier obligation; Common-carrier; Residual common carrier obligation; Public carrier; Motor carrier (designation)
<communications, company> (Or "phone company") A private company that offers telecommunications services to the public. (1995-03-20)

Wikipedia

Carrier-sense multiple access

Carrier-sense multiple access (CSMA) is a medium 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.

Under CSMA, a transmitter uses a carrier-sense mechanism to determine whether another transmission is in progress before initiating a transmission. That is, it tries to detect the presence of a carrier signal from another node before attempting to transmit. If a carrier is sensed, the node waits for the transmission in progress to end before initiating its own transmission. Using CSMA, multiple nodes may, in turn, send and receive on the same medium. Transmissions by one node are generally received by all other nodes connected to the medium.

Variations on basic CSMA include addition of collision-avoidance (CSMA/CA), collision-detection (CSMA/CD) and collision-resolution techniques.