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研究生:陳宏信
研究生(外文):Hong-Xin Chen
論文名稱:應用於WiMAX與WiFi之異質性無線網路的頻寬管理機制
論文名稱(外文):A Self-Adaptive Resource Management Scheme for WiMAX/WiFi Heterogeneous Wireless Networks
指導教授:黃振榮黃振榮引用關係
指導教授(外文):Chenn-Jung Huang
學位類別:碩士
校院名稱:國立花蓮教育大學
系所名稱:學習科技研究所
學門:教育學門
學類:教育科技學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:50
中文關鍵詞:無線網路WiMAXWiFi頻寬管理
外文關鍵詞:wirelessWiMAXWiFi
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在行動無線網路逐漸普及,可以預見的未來的行動通訊環境將會由各種不同傳輸範圍以及各具特色的網路所形成,像這樣的異質性網路將會是未來無線網路的骨幹。而其中被大家所期待,整合無線都會網路(WMAN)以及無線區域網路(WLAN)將是未來的趨勢所在‧而在眾多的無線都會網路技術與無線區域網路中,其中兩個最為大家所矚目的技術就是WiMAX(Worldwide Interoperability for Microwave Access)以及WiFi(Wireless Fidelity),而考慮覆蓋範圍、成本以及傳輸效率上,把兩個技術整合在一起將可以各取所需、各展優勢,並且可以提供良好的服務品質(Quality of service)。本研究提出設計一個在WiMAX以及WiFi無線網路環境下的頻寬管理系統,包含基因演算法、路徑預測以及頻寬預留,希望建立一個支援較少的人力介入的無線網路環境。
As mobile wireless networks increase in popularity and pervasiveness, the future Wireless Internet is expected to consist of different types of wireless network with different coverage range. Two wireless technologies nowadays are WiMAX (Worldwide Interoperability for Microwave Access) and WiFi (Wireless Fidelity). For better and cheaper wireless coverage extension, the integration of these two technologies seems to be a very good option. The hybrid network of WiFi and WiMAX can take advantage of them to offer high quality of service. This work presents a bandwidth management scheme for integrated WiMAX and WiFi wireless network, in which the genetic algorithm, predictive tracking of the mobile hosts and bandwidth allotment are included, in order to manage the precious bandwidth resource in the heterogeneous wireless networks with minimal human intervention. The experimental results verify the effectiveness and feasibility of the proposed scheme.
中文摘要 II
Abstract IV
目次 V
圖次、表次 VII
表次 IX
表次 IX
第一章 緒論 1
第一節 研究背景 1
第二節 研究動機 3
第三節 研究目的 5
第四節 論文架構 5
第二章 文獻探討 7
第一節 WiMAX與WiFi的異質性網路 7
第二節 無線網路的頻寬管理 9
第三節 空間分割多重存取(SDMA) 10
第四節 移動模型 11
第五節 基因演算法(genetic algorithm) 14
第三章 研究方法 15
第一節 中斷預測模組 15
(一) 行進方向機率分配 15
(二) 位置預測 18
(三) 訊號中斷預測 20
第二節 頻寬管理(Bandwidth management) 22
(一) 頻寬預留(Bandwidth reservation) 22
(二) 頻寬借用(Bandwidth borrow) 22
第三節 使用基因演算法的頻寬分配方法 23
(一) 初始族群(initial gene) 25
(二) 適應函數(fitness function) 25
(三) 複製、交配與突變(reproduction, crossover and mutation) 26
(四) 收斂(convergence) 26
第四節 呼叫允入控制 27
第四章 模式簡化 28
第一節 機率分配的簡化 28
第二節 位置預測的簡化 30
第三節 訊號中斷預測的簡化 30
第五章 實驗結果與分析 32
第六章 結論以及未來工作 40
參考文獻 42
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