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An adaptive back-stepping controller based on least squares-support vector machine (LS-SVM) is developed for precision positioning of robot manipulators that can compensate for dynamic friction and uncertainty in manipulator dynamics and actuator dynamics. Firstly, using cross-validation algorithm to get LS_SVM initial parameters based on offline learning. Secondly, introducing the error of LS-SVM...
In this paper, by jointly considering antenna selection and power allocation, we address the energy efficiency (EE) maximization problem with delay performance taken into account in downlink distributed antenna systems (DAS). To characterise system EE, we first define a revenue-cost (RC) function as the weighted difference between sum transmit rate and total energy consumption. We then formulate the...
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