A communication system for radio transmission, the communication system comprising a base station, at least one remote radio head, and at least one channel, wherein the base station comprises: - at least two digital modulators (111a, 111b), a first digital modulator which is adapted for modulating a first incoming radio signal to obtain a first quantized signal and a second digital modulator which is adapted for modulating a second incoming radio signal to obtain a second quantized signal, - a multiplexer for interleaving the first quantized signal and the second quantized signal to obtain a quantized signal, - a transmitter adapted for transmitting the quantized signal over the channel to the remote radio head which comprises: - a receiver adapted for capturing the quantized signal, - a clock extraction module adapted for receiving the signal from the receiver and for converting it into a clock signal, characterized in that the remote radio head comprises: - a demultiplexer adapted for splitting the quantized signal using the clock signal to obtain at least two quantized signals, - at least two filters (133a, 133b) adapted for filtering the quantization noise from the quantized signals to obtain the filtered signals. wherein the base station comprises: - at least two digital modulators (111a, 111b), a first digital modulator which is adapted for modulating a first incoming radio signal to obtain a first quantized signal and a second digital modulator which is adapted for modulating a second incoming radio signal to obtain a second quantized signal, - a multiplexer for interleaving the first quantized signal and the second quantized signal to obtain a quantized signal, - a transmitter adapted for transmitting the quantized signal over the channel to the remote radio head which comprises: - a receiver adapted for capturing the quantized signal, - a clock extraction module adapted for receiving the signal from the receiver and for converting it into a clock signal, - at least two digital modulators (111a, 111b), a first digital modulator which is adapted for modulating a first incoming radio signal to obtain a first quantized signal and a second digital modulator which is adapted for modulating a second incoming radio signal to obtain a second quantized signal, - a multiplexer for interleaving the first quantized signal and the second quantized signal to obtain a quantized signal, - a transmitter adapted for transmitting the quantized signal over the channel to the remote radio head which comprises: - a receiver adapted for capturing the quantized signal, - a clock extraction module adapted for receiving the signal from the receiver and for converting it into a clock signal, characterized in that the remote radio head comprises: - a demultiplexer adapted for splitting the quantized signal using the clock signal to obtain at least two quantized signals, - at least two filters (133a, 133b) adapted for filtering the quantization noise from the quantized signals to obtain the filtered signals. - a demultiplexer adapted for splitting the quantized signal using the clock signal to obtain at least two quantized signals, - at least two filters (133a, 133b) adapted for filtering the quantization noise from the quantized signals to obtain the filtered signals.