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Adaptive Streaming Media Service Based on Frame Priority Considering Battery Characteristics of Mobile Devices  

Lee, Joa-Hyoung (강원대학교 컴퓨터정보통신공학과)
Lim, Dong-Sun (한국전자통신연구원 u-sw공학연구팀, 강원대학교 컴퓨터정보통신공학과)
Lim, Hwa-Jung (강원대학교 컴퓨터정보통신공학과)
Jung, In-Bum (강원대학교 컴퓨터정보통신공학과)
Abstract
With the advance and proliferation of computer and wireless network technology, it is common to access to network through the wireless network using mobile device. The ratio of using the streaming media out of many applications through the network is increasing not only in the wired network but also in the wireless network. The streaming media is much bigger than other contents and requires more network bandwidth to communicate and more computing resources to process. However the mobile devices have relatively poor computing resource and low network bandwidth. If the streaming media service is provided for mobile devices without any consideration about the network bandwidth and computing power, it is difficult for the client to get the service of high quality. Since especially mobile devices are supported with very limited energy capacity from the battery, the streaming media service should be adjusted to the varying energy state of mobile devices to ensure the complete playback of streaming media. In this paper, we propose a new method to guarantee the complete playback time of the streaming media for the mobile clients by dynamically controlling transmitted frame rate to the client according to the estimated available time of mobile device using battery model reflecting the characteristic of the battery. Since the proposed method controls the number of frames transmitting to the client according to the energy state of the mobile device, the complete playback time is guaranteed to mobile clients.
Keywords
mobile client; battery characteristic; energy aware; streaming media;
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