Power-driven VoIP quality adaptation over WLAN in mobile devices
Power-driven VoIP quality adaptation over WLAN in mobile devices
复制标题
移动设备中 WLAN 上的功率驱动 VoIP 质量自适应
DOI：
10.1109/glocomw.2012.6477765
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Lingfen Sun
中科院分区：
文献类型：
--
作者：
Is;Lingfen Sun
诸如分组丢失和延迟的网络参数已经被广泛地研究为确定何时以及如何执行VoIP质量适配以增强体验质量的主要因素。然而，已经投入一点努力来调查非网络参数（诸如移动的设备中的有限电池资源）对VoIP QoE的影响。电池寿命不足以完成VoIP通信会话将对用户的QoE产生不利影响。为了减轻电池寿命的限制，本文提出了VoIP质量自适应方案，通过改变视频发送比特率来保持可接受的质量，以节省电力，从而延长VoIP通信会话。通过实验，初步结果表明，所提出的方案的有效性，在节省功率，同时保持可接受的QoE。节省的功率在总系统功率的10-30%之间。
Network parameters such as packet loss and delay have been extensively investigated as the major factors in determining when and how to carry out VoIP quality adaptation to enhance quality of experience. However, a little effort has been put into investigating the impact of non-network parameters such as limited battery resources in mobile devices on the VoIP QoE. Battery life which is not long enough to complete VoIP communication session will adversely affect users' QoE. In order to mitigate battery life limitation, this paper proposes VoIP quality adaptation scheme whereby an acceptable quality is maintained by changing video send bitrate in order to conserve power and hence, prolong VoIP communication session. Through experiments, preliminary results have shown the effectiveness of the proposed scheme in terms of power saving while maintaining acceptable QoE. The power saving was between 10-30% of the total system power.
影响因子：
35.6
作者：
Vallina-Rodriguez, Narseo;Crowcroft, Jon
通讯作者：
Crowcroft, Jon