It is very important for any circuit to dissipate low power. As the low power dissipation circuits are most popular now a days when the scaling of the circuit increases the leakage power also increases rapidly in the circuit. So, for decreasing these kinds of leakages and to provide a better power efficiency there are many types of power gating techniques.
Related Journals of Circuits
Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics, Transactions on Power Systems, Communications Surveys and Tutorials