Power management mechanism exploiting network and video information over wireless links

作     者：Bouras, Christos Charalambides, Savvas Stamos, Kostas Stroumpis, Stamatis Zaoudis, Giannis 

作者机构：Computer Technology Institute and Press 'Diophantus' Greece Computer Engineering and Informatics Dept. University of Patras Greece Technological Educational Institute of Patra Greece 

出 版 物：《Journal of Networks》 (J. Netw.)

年 卷 期：2013年第8卷第1期

页      面：15-25页

核心收录：

主　　题：Power management 

摘      要：This article examines the ways in which crosslayer information from higher network layers may be utilized for more efficient power management in wireless networks and energy constrained mobile devices. In particular, we present and evaluate mechanisms that fine-tune transmission power according to information received from the transport (feedback reports from TFRC) and application (type of the video frame encoded) layers. Further improvements may be applied if the video encoding is done using capabilities of the SVC standard. We also describe power management adaptation techniques for wireless video transmission using the TFRC protocol that take into account feedback about the received video quality and try to adapt transmitting power accordingly. The purpose of the mechanisms is to utilize TFRC feedback and thus achieve a beneficial balance between the power consumption and the received video quality. The mechanisms proposed, offer significant improvements when used in terms of both power consumption and received video quality. All proposals are compared and evaluated using simulation. © 2013 ACADEMY PUBLISHER.