Abstract
In wireless LAN, power saving is very important because the power of wireless LAN node is limited. Therefore, in IEEE 802.11 wireless LAN, the node can use the Power Saving(PS) mode to save the power consumption. When the nodes are in the PS mode, they awake periodically to check receiving packet through the beacon frame. If the receiving packet exists, they transmit PS POLL to the AP. After the AP receives the PS POLL, the AP transmits the buffered packet. However, in conventional scheme, when PS POLL is transmitted, the transmission order is determined without considering remaining power. Therefore, in this paper, we propose a priority based power management scheme that PS nodes transmit the PS POLL according to remaining power.
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