Title :
Adaptive transmit power control in IEEE 802.11a wireless LANs
Author :
Qiao, Daji ; Choi, Sunghyun ; Jain, Amit ; Shin, Kang G.
Author_Institution :
Michigan Univ., Ann Arbor, MI, USA
Abstract :
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 subsequent data frame transmission to save energy. The performance of the proposed scheme is evaluated via simulation in the ns-2 simulator.
Keywords :
adaptive control; data communication; power control; telecommunication control; wireless LAN; IEEE 802.11a standard; RTS/CTS frame; adaptive control; data frame transmission; distributed coordination function operation; local area networks; ns-2 simulator; physical layer rate adaptation; transmit power control; wireless LANs; Adaptive control; Data communication; Energy consumption; Energy efficiency; Local area networks; Physical layer; Power control; Programmable control; USA Councils; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Conference_Location :
Jeju, South Korea
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207577
