Power dissipation impacted by stochastic characteristics of signals

This paper investigates power dissipation by studying stochastic characteristics of signals in the circuit. Not only the correlation of transition probability is considered but also the correlation of the inputs is factored in the analysis. We simulate the inputs by using random sequences following specified stochastic characteristics. The results show that stochastic parameters impact switch activity, and the degree of impact relates to structures of the circuit. Our observations indicate that, in order to reduce power consumption, circuit has to be carefully designed with concerning parameters such as ordering of variables and input stochastic characteristics of inputs. The other advantage of stochastic model analysis is that it leaves space to add more parameters, such as circuit delay, into considerations.