Optimal Channel Switching Over Gaussian Channels Under Average Power and Cost Constraints
Abstract— Optimal Channel Switching Over Gaussian Channels Under Average Power and Cost Constraints. Optimal channel switching that provides the highest performance over a set of Gaussian channels with variable utilization costs is investigated in the presence of average power and average cost constraints. First,< Final Year Projects 2016 > generic cost functions are considered, and it is shown that the optimal channel switching strategy performs channel switching time sharing among at most three different channels and always operates at the average power and average cost limits. Also, for channel switching between two channels, relations between the optimal power levels are obtained depending on the average power limit, and it is proved that the ratio of the optimal power levels is upper bounded by the ratio of the larger noise variance to the smaller one.
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