What is the difference between CSMA/CA and CSMA/CD?

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CSMA/CD:
CSMA/CD stands for Carrier Sense Multiple Access / Collision  is a network protocol for carrier . It is operated in the medium access control . It senses of the shared channel is busy for broadcasting and interrupt the broadcast until the channel is free. In CSMA/CD collision is detected by broadcast sensing from the other stations. Upon collision detection in CSMA/CD, the transmission is stopped and a jam signal is send by the stations and then station waits for a random time context before retransmission.

CSMA/CA:
CSMA/CD stands for Carrier Sense Multiple Access / Collision Avoidance is a network protocol for carrier transmission. Like CSMA/CD it is also operated in the medium access control layer. Unlike CSMA/CD(that is effective after a collision) CSMA / CA is effective before a collision.

Let’s see the difference between CSMA/CA and CSMA/CD:-

S.NOCSMA/CDCSMA/CA
1.CSMA / CD is effective after a collision.Whereas CSMA / CA is effective before a collision.
2.CSMA / CD is used in wired networks.Whereas CSMA / CA is commonly used in wireless networks.
3.It only reduces the recovery time.Whereas CSMA/ CA minimizes the possibility of collision.
4.CSMA / CD resend the data frame whenever a conflict occurs.Whereas CSMA / CA will first transmit the intent to send for data transmission.
5.CSMA / CD is used in 802.3 standard.While CSMA / CA is used in 802.11 standard.
6.It is more efficient than simple CSMA(Carrier Sense Multiple Access).While it is similar to simple CSMA(Carrier Sense Multiple Access).

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