State-based load shedding for physiological signals

摘要

A method of load-shedding in a system having a plurality of signal sources is disclosed. The method comprises the steps of: (a) for each signal source S_i selected from a set of sources {S₁, S₂, . . . }, each source having state p_i,k selected from a set of states {p_1,1, p_1,2, . . . , p_1,N; p_2,1, p_2,2, . . . , p_2,N; . . . }, wherein i is an integer greater than one, N is an integer not less than two and k is an integer from 1 to N: (i) obtaining fractions f_i,k, wherein each 0<=F_i,k<1 is a fraction of a signal from source S_i to be discarded if source S_i is in state p_i,k; and (ii) determining respective state p_i,k of signal source S_i based on the signal from source S_i; and (b) for each source signal S_i in determined state p_i,k, discarding fraction f_i,k of a signal from source S_i.