Technologies are generally described for a resource allocation scheme for wireless communications. In some examples, a radio base station configured to communicate with one or more mobile devices may include a speed detection unit configured to detect moving speeds of the one or more mobile devices relative to a position of the radio base station; a resource allocation unit configured to allocate frequencies of one or more subcarriers based on the moving speeds of the one or more mobile devices; and a radio communication unit configured to communicate with the one or more mobile devices using the allocated frequencies of the one or more subcarriers.