We propose an efficient proportional fair (PF) scheduling algorithm for multi-user OFDMA systems employing fixed relays. An PF metric maximization problem is first formulated for relay enhanced OFDMA cellular systems. A two-step algorithm is then proposed to solve the problem; the user routing step and the resource allocation step. The simulation results confirm the near-optimal performance of the proposed algorithm in PF sense.
Bin TangBaoliu YeSanglu LuSong Guo
Jiansong MiaoLin MaKai LiuYan WangShuying Wang
Ying WangGen LiTong WuFeng Gong
Mohamed KhedrIbrahim El RubeYasser Y. HanafyHatem Abou-Zeid