关键词: 流媒体, 低功耗, 马尔科夫决策过程, 异构多核架构

Abstract: To deal with the high power consumption problem of mobile streaming media application, this paper proposes energy optimization method for mobile streaming media based on Markov decision processes for heterogeneous platform. By synthesizing the usages of different users, power consumption for video display, play time and current network state, CPU resources are reasonably distributed according to the principle of maximum award so as to reduce power consumption. The experimental result indicates that, compared with the system’s default scheduling strategy of heterogeneous multi-processing, the power consumption optimization method put forward in this paper can reduce the power consumption of streaming media video at the mobile terminal while maintaining its playback quality.

Key words: streaming media, low power consumption, Markov decision processes, heterogeneous multi-core architecture