802.11g MAC Functions
What are MAC Functions in IEEE 802.11g?
MAC functions manage frame delimiting, addressing, error detection, and reliable data delivery in wireless networks.
How does the MAC layer ensure reliable communication?
It uses acknowledgments (ACK), retransmissions, and error detection mechanisms like CRC.
What role does CSMA/CA play in MAC Functions?
CSMA/CA coordinates medium access by sensing the channel and avoiding collisions during transmissions.
Does 802.11g MAC support fragmentation?
Yes, MAC fragmentation breaks large frames into smaller ones to improve transmission success rates.
How does the MAC layer handle addressing?
It uses MAC addresses in frame headers to identify source and destination devices.
What is the sequence control function in MAC?
It manages packet ordering and duplicate detection for reliable data transfer.
How does the MAC layer support power management?
It signals power save modes allowing devices to sleep and wake for data delivery.
Are security features part of MAC functions?
Yes, MAC layer supports encryption and authentication protocols for secure communication.
How does MAC layer interact with the physical layer?
MAC controls frame transmission timing and error handling based on PHY feedback.
What challenges do MAC functions address in wireless networks?
They handle issues like interference, collisions, and variable signal quality to maintain data integrity.
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