A detailed survey of relevant power-saving approaches in wired networks is presented here.
In addition to power control or power-saving approaches, which are two common approaches to extend network lifetime, in previous research, one of the extending network lifetime schemes is to plan an effective wake-up/sleep schedule for sensors to achieve the purpose of extending the network lifetime [5 8].
By switching off the Wi-Fi interface, the whole power consumption of the ultrabook is decreased by 1.6 W. Fig. 18 Total power saving with our approach.
By switching off the Wi-Fi interface, the whole power consumption of the ultrabook is decreased by 1.6 W. Fig. 18 Total power saving with our approach The total power reduction obtained by managing the CPU is relative to the running applications, the user behaviors, and interaction pattern as shown previously.
Translating to the power saving, the optimized adaptive approach provides a power consumption reduction by up to 37 and 75%, compared to the two counterparts.
Experimental results on Gigascale Systems Research Center GSRCC) benchmark suites indicate the proposed approach can improve power saving by 12%, CPU time by 48% with 4% area increase.
This approach leads to significant power saving compared with state-of-the art dynamic voltage scaling (DVS) techniques because of three major contributions.
Although these are very important applications, in terms of power generation or power saving, they are almost negligible in comparison to the approach that we have suggested in our paper.
Experiments, carried out using an FPGA implementation, demonstrate the effectiveness of the proposed approach, in terms of achievable speed-up, power saving and introduced overhead.
The simulation and analysis demonstrates significant power saving and relatively low average end-to-end packet delay for this state-transition based approach, in comparison to the conventional polling system and the low power sniff mode.
