Adaptive transmit power control in IEEE 802.11a wireless LANs

  title={Adaptive transmit power control in IEEE 802.11a wireless LANs},
  author={Daji Qiao and Sunghyun Choi and Amit Jain and K. G. Shin},
  journal={The 57th IEEE Semiannual Vehicular Technology Conference, 2003. VTC 2003-Spring.},
  pages={433-437 vol.1}
Transmit power control (TPC) has been recognized as one of the effective ways to save energy in wireless devices. In this paper, we demonstrate the energy-efficient distributed coordination functions (DCF) operation of IEEE 802.11a wireless LANs (WLANs) via TPC and physical layer (PHY) rate adaptation. The key idea is to enforce an RTS/CTS frame exchange before each data transmission, and then select the most energy-efficient combination of the PHY mode and the transmit power level for the… CONTINUE READING
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