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