A system for dewatering a stream of slurry has a first and a second separator. In some embodiments, the polymer is derived from a hydrophobic monomer andor a gas-phase mono-mer. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel. The transmitter is configured to transmit the modified input signal as part of an outgoing communication.