The IEEE defines different access methods for 802.3 and 802.11 standards. On wired Ethernet LANs, Carrier Sense Multiple Access/Collision Detection (CSMA/CD) is used to detect collisions. Collision detection is used to improve performance by terminating transmission as soon as a collision is detected and reducing the probability of a second collision on retry.
Unlike the 802.3 standards, the 802.11 standards seek to avoid, rather than to detect, collisions and thus employ Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA). The basic premise behind collision avoidance is that any STA wishing to transmit a frame . . .
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