Open and Association MCTAs Access and Allocation Scheme by Staggering Algorithm in IEEE 802.15.3

The IEEE 802.15.3 medium access control (MAC) protocol is standard for high bit rate wireless personal area network (WPAN). The open or association management channel time allocations (MCTAs) are used by devices(DEVs) for sending command messages or association request command to piconet coordinator (PNC) by means of slotted aloha random access manner. Based on slotted aloha scheme the binary back-off algorithm has been considered as a primary contention resolution candidate due to its simple operation. However it is not appropriate for the future wireless networks because of low throughput and high delay and delay variance. Without loss of generality the goals of the random multiple access algorithm are to maximize the throughput and to minimize the average packet delay. In this paper, we propose a new multiple access protocol named staggering algorithm working on top of slotted aloha scheme. The performance results by NS-2 simulation show that the proposed algorithm achieves the maximum throughput up to 0.54 and guarantees the QoS in terms of delay and delay variance of realtime multimedia traffic.