Research Article
Joint Optimized CPU and Networking Control Scheme for Improved Energy Efficiency in Video Streaming on Mobile Devices
Table 1
Simulation parameter settings.
| Parameters | Values |
| Download rate of a mobile device | A Rayleigh distributed wireless channel with the means of 0.5, 1, 1.5, and 2 Mbps | Video encoding rate | 320 kbps | Entire video length | 200 s | Packet length | 2 s | Maximum receiving and playback buffer size | 20 chunks | Average power consumption in active state () | 0.897 W | Average power consumption per downloaded data () | 0.134 μJ | CPU frequency | 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, and 1.6 GHz | Coefficient for CPU’s power consumption () | 0.4 s | Coefficient for CPU’s power consumption () | 0.3 s | Processing density | 1000 cycles/bit |
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