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研究生:孫裕航
研究生(外文):Yu-hang Sun
論文名稱:多媒體分區塊無線網路上的分層頻寬預留法
論文名稱(外文):Tiered Bandwidth Reservation Scheme for Multimedia Sectorized Wireless Networks
指導教授:賴威光賴威光引用關係
指導教授(外文):Wei-Kuang Lai
學位類別:碩士
校院名稱:國立中山大學
系所名稱:資訊工程學系研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:56
中文關鍵詞:方向性天線允入控制頻寬借用頻寬預留分層架構QoS
外文關鍵詞:Call Admission ControlBandwidth BorrowingTiered cell structureBandwidth ReservationQuality of ServiceSector Antenna
相關次數:
  • 被引用被引用:0
  • 點閱點閱:82
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  • 下載下載:5
  • 收藏至我的研究室書目清單書目收藏:0
在下一代的無線網路中,由於頻寬的增加、技術的進步,除了以往的資料傳輸之外,同時,也能提供多媒體資料的傳輸。所以一個無線網路是否能提供給這些多媒體連線適當的QoS,變成了一個重要的議題。在提出的方法中,我們假設 cell中使用的是多方向性的天線,而非傳統無方向性的天線,利用這個特性,我們便能更準確的預測所須在相鄰cell中預留資源的數量;此外,藉由在cell上分層的方式來達到降低call blocking probability (CBP)。除此之外,在通道配制上,我們採用一個全新的允入控制(Call Admission Control)和頻寬借用的方式作為接受連線與否的方法;結合二者能提供多媒體連線適當的QoS,且能同時降低call
blocking probability (CBP)、call dropping probability (CDP),並能提高整體頻寬的使用率。
Because there has been a rapid development in wireless networks, it is important to provide quality-of-service (QoS) guarantees as they are expected to support multimedia applications. In this paper we propose a new bandwidth reservation scheme based on the characteristic of the cell equipped with sector antenna and 2-tier cell structure. According to this information, the proposed scheme can predict the next location of each connection and precisely reserve bandwidth in appropriate neighboring cells, not all of its neighboring cells. In addition, the proposed scheme incorporates bandwidth borrowing mechanism into call admission control strategy. The combination of bandwidth reservation and bandwidth borrowing provides network users with QoS in terms of guaranteed bandwidth, call blocking and call dropping probabilities.
第一章 導論...........................................................................................1
1. 1研究動機………………………………………………………...1
1.2研究方法………………………………………………………....3
1.3論文架構………………………………………………………....5
第二章 研究背景與相關研究............................................................6
2.1無線通訊系統對於有限頻寬資源利用的研究............................6
2.1.1頻率重複利用..........................................................................6
2.1.2改變頻寬規劃方式...................................................................7
2.2通道的配置……………………………………………………....8
2.2.1連線要求…………………………………………………....8
2.2.2通道配置的方法……………………………………………..9
2.2.3頻寬預留的方法………………………………………….....14
2.3相關研究………………………………………………………...16
第三章 提出的資源預留機制與通道配置法…………………....22
3.1資源預留機制…………………………………………………...22
3.1.1使用者移動方向的預測……………………………………...23
3.1.2評估須預留資源........................................................................24
3.2通道配置的方法………………………………………………...27
3.2.1 New Call Admission………………………………………....28
3.2.2 Handoff Connection Admission.......................................................29
3.2.3 Call Termination…………………………………………….32
第四章 電腦模擬與模擬分析……………………………………...33
4.1 模擬環境設定…………………………………………………..33
4.2 效能比較………………………………………………………..35
4.3 模擬結果與分析………………………………………………..37
第五章 結論…………………………………………………………...53
參考文獻(Reference) ………………………………………………54
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[2] Chang Ho Choi, Myung Il Kim, Tae June Kim, and Sung Jo Kim, ”Adaptive Bandwidth Reservation Mechanism using Mobility Probability in Mobile Multimedia Computing Environment,” in Proc. 25th Annual IEEE Conference on LCN., pp. 76-85, Nov. 2000.
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