Link Adaptation Strategy on Transmission Rate and Power Control in IEEE 802.11 WLANs

Link Adaptation techniques, such as rate adaptation and power control, aim at reliable data transmission through maintaining link quality. In order to do that, we measure the performance of IEEE 802.11 Wireless LAN (WLAN) in real environments that produce unexpected interference from neighbor access points or electronic devices. In this paper, we propose a novel strategy for the link adaptation technique in WLAN MAC. The new strategy provides two decisions to estimate the link condition and to manage both the transmission rate and power. Finally, we show reliable transmission through the throughput measurement using the MAC we designed.