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Adaptive Time-utility Function Scheme for Downlink Packet Scheduling in IEEE 802.16e/WiMAX Networks

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題名: Adaptive Time-utility Function Scheme for Downlink Packet Scheduling in IEEE 802.16e/WiMAX Networks

作者: Jui-Chi Chen

關鍵詞: IEEE 802.16e;WiMAX;packet scheduling;adaptive time-utility function.

日期: 2009

上傳時間: 2010-04-15T05:42:03Z

摘要: WiMAX is a well-known broadband wireless access technology that supports multimedia

transmission users. IEEE 802.16e has evolved into five quality of service (QoS) scheduling types for

WiMAX uplink transmissions, but downlink transmission types have not yet been defined. To assist in

this task, and to support efficient base station packet scheduling that takes QoS into account, I propose

an adaptive time-utility function (A-TUF) packet scheduling scheme to improve downlink real-time

(RT) traffic QoS and whole system throughput. Simulation results indicate that the proposed scheme is

capable of providing lower RT packet delay and loss rate compared to conventional TUF-based

algorithms.

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