New Online Algorithm for Dynamic Speed Scaling with Sleep State
Gunjan Kumar, Saswata Shannigrahi

TL;DR
This paper introduces a new online algorithm for energy-efficient job scheduling that improves the competitive ratio for certain parameters, outperforming previous algorithms in minimizing energy while meeting deadlines.
Contribution
The paper presents SqOA, an online scheduling algorithm with a better competitive ratio for lpha 3, improving energy efficiency in dynamic speed scaling with sleep states.
Findings
SqOA achieves a competitive ratio max 4, 2 + (2-1/3)^ 2^{-1}
For 3, SqOA outperforms existing algorithms in energy minimization
The algorithm is effective in online settings with jobs known only at arrival
Abstract
In this paper, we consider an energy-efficient scheduling problem where jobs need to be executed such that the total energy usage of these jobs is minimized while ensuring that each job is finished within it's deadline. We work in an online setting where a job is known only at it's arrival time, along with it's processing volume and deadline. In such a setting, the currently best-known algorithm by Han et al. \cite{han} provides a competitive ratio max of energy usage. In this paper, we present a new online algorithm SqOA which provides a competitive ratio max of energy usage. For , the competitive ratio of our algorithm is better than that of any other existing algorithms for this problem.
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