DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CDMA
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CDMA/CD
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CDMA/CA
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None of the above
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Detailed explanation-1: -IEEE 802.11 wireless LANs use a media access control protocol called Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA).
Detailed explanation-2: -IEEE 802.11p 802.11 is an amendment for including wireless access in vehicular environments (WAVE) to support Intelligent Transportation Systems (ITS). They include network communications between vehicles moving at high speed and the environment. They have a data rate of 27 Mbps and operate in 5.9 GHz band.
Detailed explanation-3: -Carrier sense multiple access with collision avoidance (CSMA/CA) is one of the basic medium access control (MAC) protocols specified in the popular IEEE 802.11 standard. One important feature of CSMA/CA is its use of in-band control frames for dealing with hidden terminals and reducing the cost of potential collisions.
Detailed explanation-4: -802.11a uses radio frequencies in the 5 GHz band and supports theoretical throughput of up to 54 Mbps. The standard uses the same base protocol as the original 802.11 standard, but uses orthogonal frequency-division multiplexing (OFDM). Also known as IEEE 802.11a-1999.