A QoS-Controlled Scheduling Algorithm for Mixed Services in the Downlink of OFDMA Systems
نویسندگان
چکیده
In this paper, we consider a downlink packet scheduling algorithm in OFDMA systems for mixed traffics, such as real-time (RT) and non-real-time (NRT) services. The scheduling algorithm we proposed bases on the Utility Function and the Barrier Function, taking into account the Head-Of-Line (HOL) packet delay and Packet Drop Ratio (PDR) for video streaming. Simulation results show that our new algorithm outperforms the traditional scheduling algorithms in controlling the HOL packet delay and PDR, when maintaining almost the same throughput of the system. Keywordsdownlink system; mixed services; OFDMA; QoS; scheduling
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