LTE中具DRX機制與服務品質控制之頻寬配置演算法
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Date
2014
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Abstract
本論文提出服務品質保證的動態排程演算法針對對話性質之服務流，使用正交分頻多工存取(Orthogonal Frequency Division Multiple Access, OFDMA)技術為基礎之LTE無線環境中，在此我們提出動態調整機制且兼具目標延遲時間追求的下行鏈路排程演算法，在無線通訊系統如3GPP 發展之長期演進 (Long-Term Evolution, LTE)系統中。本論文之設計動機為維持即時(Real time, RT)服務之服務品質(Quality of Service, QoS)使用MLWDF及最大速率法的次佳排程法資源分配，並以動態調整的機制，達到提升系統效能與資源分配公平性。透過模擬，我們觀察到提出之演算法可以有效追逐目標延遲。
This paper presents QoS in real time service flow for dynamic scheduling algorithm, using orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA) technology-based on LTE wireless environment, in which we propose dynamic adjustment mechanism and the target delay time to pursue as goals in the downlink scheduling algorithm of wireless communication systems of the 3GPP Long-Term Evolution (LTE) systems. The motivation of this paper is designed to maintain real-time (Real time, RT) service quality of services (Quality of Service, QoS) and based on MLWDF and maximum rate suboptimal resource allocation scheduling method, then using dynamic adjustment mechanism, to improve system performance and resource allocation fairness. Through simulation, we observed proposed algorithm can effectively chase the target delay.
This paper presents QoS in real time service flow for dynamic scheduling algorithm, using orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA) technology-based on LTE wireless environment, in which we propose dynamic adjustment mechanism and the target delay time to pursue as goals in the downlink scheduling algorithm of wireless communication systems of the 3GPP Long-Term Evolution (LTE) systems. The motivation of this paper is designed to maintain real-time (Real time, RT) service quality of services (Quality of Service, QoS) and based on MLWDF and maximum rate suboptimal resource allocation scheduling method, then using dynamic adjustment mechanism, to improve system performance and resource allocation fairness. Through simulation, we observed proposed algorithm can effectively chase the target delay.
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長期演進, 排程演算, 下行鏈路, 服務品質, 動態調整, LTE (Long-Term Evolution), scheduling, downlink, QoS(Quality of Service), Dynamic allocation