Title :
Additional power reduction offered by fast power control over slow power control in multimedia communications over WLANs
Author :
Yip, Kun- Wah ; Ng, Tung-Sang
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
Abstract :
An expression is derived to estimate the additional power reduction (APR) offered by fast power control (FPC) over slow power control (SPC) in multimedia communications over wireless local area networks (WLANs). The derived result is used to investigate achievable APRs for WLANs operating on Rician-fading channels with or without diversity reception. The results indicate that using FPC instead of SPC yields a substantial reduction of transmit power for multimedia communications involving hand-held portable computing devices.
Keywords :
Rician channels; error statistics; multimedia communication; power control; quality of service; telecommunication control; wireless LAN; BER; QoS; Rician fading channels; WLANs; additional power reduction; diversity reception; fast power control; handheld portable computing devices; multimedia communications; slow power control; transmit power reduction; wireless LANs; wireless local area networks; Computer networks; Fading; Flexible printed circuits; Mobile communication; Multimedia communication; Portable computers; Power control; Propagation losses; Shadow mapping; Wireless LAN;
Conference_Titel :
Circuits and Systems, 2002. APCCAS '02. 2002 Asia-Pacific Conference on
Print_ISBN :
0-7803-7690-0
DOI :
10.1109/APCCAS.2002.1115183
