ABSTRACT
Functions like beaconing and data transfers are the base of MAC protocol and required for interoperation and data communication. MAC supports three different acknowledgment policies for the verification of the delivery of a frame. Block-ACK or B-ACK is used when assured reception of traffic is required but frequency of too many acknowledgment frames is an overhead. Power save is very important for any battery operated wireless device. MAC provides techniques for power saving. Inter-superframe Power Save is also called hibernation mode. Device wakes up at least one superframe before hibernation duration is over in order to resynchronize itself with other devices beacons. Wireless network is different from security point of view compared to wired network, because of not having wire or closed end to end medium.
