Complete Protocol dictionary, glossary and reference
CSMA/CA: Carrier Sense Multi-Access/Collision Avoidance
Carrier Sense Multi-Access Collision Avoidance (CSMA/CA) is one of the methods in CSMA. CSMA is a network access method used on shared network topologies such as Ethernet for a node to verify the absence of other traffic before transmitting on a shared physical medium. In Collision Avoidance (CA), collisions are avoided because each node signals its intent to transmit before actually doing so. This method is not popular because it requires excessive overhead that reduces performance. CA is used in wireless LAN communications.