Method for allocating resouce in a mobile communication system

A method is provided for allocating resources in a base station (BS) of a mobile communication system. The method includes calculating a priority value of each sub-carrier for each mobile station (MS) according to a data rate required by each MS and an average channel gain for each MS, the priority value based on an average channel gain between MSs; and allocating the sub-carriers to a MS according to the priority value calculated for each sub-carrier for each MS.