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

Volume

1

fYear

2003

Firstpage

433

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual

Conference_Location

Jeju, South Korea

ISSN

1090-3038

Print_ISBN

0-7803-7757-5

Type

conf

DOI

10.1109/VETECS.2003.1207577

Filename

1207577