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Now-a-days, since more and more battery-operated devices are involved in applications with continuous sensing, development of efficient sampling mechanisms is an important issue for these applications. In this paper, the authors investigate power efficiency aspects of a recently proposed adaptive non-uniform sampling. This sampling scheme minimizes the energy consumption of the sampling process, which is approximately proportional to sampling rate. The main characteristics of their method are that, first, sampling times do not need to be transmitted, since the receiver can compute them by using a function of previously taken samples, and second, only innovative samples are taken from the signal of interest, reducing the sampling rate and therefore the energy consumption.
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