Fast Multiple Access Selection Through Variable Power Transmissions

Date Added: Jun 2009
Format: PDF

Many wireless applications demand a fast mechanism to detect the packet from a node with the highest priority ("Best node") only, while packets from nodes with lower priority are irrelevant. In this paper, the authors introduce an extremely fast contention-based multiple access algorithm that selects the best node and requires only local information of the priorities of the nodes. The algorithm, which the authors call Variable Power Multiple Access Selection (VP-MAS), uses the local channel state information from the accessing nodes to the receiver, and maps the priorities onto the receive power.