Modeling the Impact of the MoreData Parameter for Wireless Power-Saving Protocols - Liang Yong

In wireless power-saving protocols, one fundamental problem is when a station switches from an awake state to a doze state. The MoreData mechanism has been widely adopted in IEEE 802.11 standards to solve the problem. In this mechanism, when the access point (AP) transmits one buffered packet to a station, it will set the MoreData bit in the Frame Control field of the packet, to notify the station of either keeping awake (i.e., when MoreData = 1) for receiving additional packets or going to sleep (i.e., when MoreData = 0). Although important, few work studied the impact of this bit theoretically. It turns out that theoretically modeling the impact of this bit is by no means easy. Focusing on a polling system, this paper is the first to theoretically model the interaction between this bit setting and others (such as the sleeping interval) and make a trade-off analysis between power consumption and packet delay. Our results …