Title :
Channel-Aware Rate Adaptation for Energy Optimization and Congestion Avoidance
Author :
Blanch, C. ; Pollin, Sofie ; Lafruit, Gauthier ; Dejonghe, Antoine ; Lenoir, G.
Author_Institution :
IMEC, Leuven, Belgium
Abstract :
Achieving low energy consumption is one of the main challenges for wireless video transmission on battery limited devices. Moreover, the bandwidth is scarce and needs to be properly shared amongst different users. Congestion in the network can result in packet losses, with a significant impact on video quality. In this paper we propose the use of a channel-adaptive rate control mechanism in a multi-user WLAN up-link scenario. The benefit is twofold: the communication energy is reduced and congestion is strongly alleviated allowing an increase of the video quality or a network capacity increase for a similar quality.
Keywords :
adaptive control; energy consumption; radio networks; telecommunication congestion control; video communication; wireless LAN; wireless channels; battery limited devices; channel-adaptive rate control mechanism; channel-aware rate adaptation; communication energy; congestion avoidance; energy optimization; low energy consumption; multiuser WLAN up-link scenario; network capacity; network congestion; packet losses; video quality; wireless video transmission; Bit rate; Communication system control; Costs; Energy consumption; Physical layer; Runtime; Scheduling; Video compression; Video sharing; Wireless LAN; Channel Adaptation; Communication Energy; Congestion; Rate Control; Scheduling;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.366034