COLLISION AVOIDANCE

Communications Systems Glossary

Communications Systems — Multiple access — Carrier-sense multiple access — Collision avoidance

 

 

 

 

 

 

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Information on Collision Avoidance (CA)

In a carrier-sense multiple access (CSMA) media-access control protocol, a collision occurs when two stations attempt to transmit at the same time. Since the messages interfere with each other, the collision must be avoided or detected. In collision avoidance, each station listens to ensure that the shared channel is free. If so, a station that desires to transmit waits a fixed time plus a random time before transmitting.


Other topics in our resources on Communications Systems related to Collision avoidance include: 
 
  • carrier-sense multiple access/collision avoidance (CSMA/CA)
  • collision
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  • Carrier-sense multiple access/collision detection (CSMA/CD)
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  • Collision detection (CD)

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