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科技與工程學院
電機工程學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73890
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search.filters.author.許筑淵
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search.filters.subject.Buffer-awareness
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search.filters.subject.CQI feedback
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search.filters.subject.LTE
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search.filters.subject.SC-FDMA
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於LTE 上行鏈路之佇列感知與多樣化資料型態的資源分配研究
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2012
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許筑淵
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近年來由於科技蓬勃的發展,4G網路的飛躍性進步,長期演進技術(Long Term Evolution, LTE)系統一值是個值得關注的話題,但因為手持式裝置的發送功率限制,正交分頻多工(Orthogonal Frequency-Division Multiple Access, OFDMA)系統過大的功率消耗不適宜移植至各式各樣的手持式移動裝置內,因此LTE系統選擇單載波分頻多工 (Single-carrier Frequency-Division Multiple Access, SC-FDMA)作為其主要的上行鏈路傳輸系統,然而SC-FDMA系統在排程的策略上,因為有連續資源塊的限制,無法沿用以往的OFDM系統機制,本篇研究提出基於用戶的確實需求,進行資源分配,考慮到用戶的佇列狀態、延遲額度、封包丟棄率,設計演算法以提升系統效能,改善整體傳輸效益。
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