A method for allocating a processing resource among multiple inputs includes defining a sequence of multiplexing iterations, each such iteration including a first plurality of windows, each such window containing a second plurality of time slots. A respective weight is assigned to each of the inputs, and each of the inputs is allotted one of the time slots in each of a respective number of the windows in each of the iterations, the respective number being determined by the respective weight. Each of the inputs is then provided with access to the processing resource during the time slots allotted thereto.