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    政大機構典藏 > 理學院 > 資訊科學系 > 會議論文 >  Item 140.119/75346
    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/75346

    Title: Fairness-based adaptive QoS scheduling for LTE
    Authors: Jang, Hung-Chin;Hu, Chien Piao
    Contributors: 資科系
    Keywords: Data communication systems;Frequency division multiple access;Information technology;Scheduling algorithms;Data transmission rates;Fairness;LTE;Modified largest weighted delay firsts;Network environments;OFDMA;Orthogonal frequency division multiple access;Resource distribution;Quality of service
    Date: 2013-10
    Issue Date: 2015-05-28 16:57:13 (UTC+8)
    Abstract: LTE employs Orthogonal Frequency-Division Multiple Access (OFDMA) to provide high data transmission rate in downlink. Users expose to different network environments, so their exploited services would experience different performance of throughput, delay time, and jitter. In the literature, many studies explored how to allocate resource blocks (RB) to different services efficiently. Famous examples are Proportional Fair (PF) and Modified Largest Weighted Delay First (MLWDF) scheduling algorithms. PF considers fairness-based service priority without Quality of Service (QoS) consideration. MLWDF favors those packets with timing constraints, resulting in uneven resource distribution. In this paper, we propose a fairness-based adaptive QoS scheduling algorithm for LTE downlink. We design an Adaptive Modified Largest Weighted Delay First (AMLWDF) formula, which considers delay time, instantaneous transmission rate, average transmission rate, delay constraints, QCI priority, and fairness at the same time. Simulation results show that AMLWDF outperforms Proportional Fair and Modified Largest Weighted Delay First in various performance indexes. © 2013 IEEE.
    Relation: International Conference on ICT Convergence, 2013, 論文編號 6675440, 626-631, 2013 International Conference on Information and Communication Technology Convergence, ICTC 2013; Jeju Island; South Korea; 14 October 2013 到 16 October 2013; 類別編號CFP1392M-ART; 代碼 104598
    Data Type: conference
    DOI 連結: http://dx.doi.org/10.1109/ICTC.2013.6675440
    DOI: 10.1109/ICTC.2013.6675440
    Appears in Collections:[資訊科學系] 會議論文

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