針對(duì)OFDMA系統(tǒng)的特點(diǎn)，提出了一種按用戶數(shù)據(jù)速率與信道條件進(jìn)行資源調(diào)度分配算法。該算法在滿足一定的公平性原則下，根據(jù)用戶的信道參數(shù)與業(yè)務(wù)需求，動(dòng)態(tài)分配子載波與傳輸時(shí)隙。同時(shí)還給出了該算法的具體實(shí)現(xiàn)步驟及在M.1225信道條件下的仿真結(jié)果，其結(jié)果表明：利用該資源調(diào)度算法可提高OFDMA系統(tǒng)的通過(guò)率近3倍。
關(guān) 鍵 詞 正交頻分復(fù)用; 資源調(diào)度; 通過(guò)率; 時(shí)隙分配

Abstract A method of resource scheduling in OFDMA communication system is proposed in this paper, with this scheme, according user data rates and channel parameter, transmitting slots and subcarriers of OFDM systems are allocated dynamically. In this paper, the scheduling method and algorithm are presented and simulation results are given. The throughput of the scheduling system could be improved almost three times than moral system.
Key words orthogonal frequency division multiplexing; resource scheduling; throughput; slot allocation