Techniques and systems for allocating bandwidth in a communication channel to devices using the communication channel are described. A communication system includes a central device and one or more remote devices. The central device may transmit information to and receive information from each of the remote devices and each of the remote devices may transmit information to and receive information from the base station. The central device receives information relating to the quality of the communication channel experienced by remote device and adjusts the bandwidth allocated to each remote device based on the communication channel quality experienced by that device. The total frequency range encompassed by the communication channel may also increase or decrease as the average quality of the communication channel for all remote devices increases or decreases. Increasing the frequency range available to a device while maintaining the channel quality allows a directly proportional increase in the communication rate with the device.