| 研究生: |
黃裕駸 Yu-chin Huang |
|---|---|
| 論文名稱: |
ATM 訊務在 WiMAX 連線彙整之效能研究 An Effective Way to Merge ATM CS Cells over WiMAX Connections |
| 指導教授: |
陳彥文
Yen-wen Chen |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
資訊電機學院 - 通訊工程學系在職專班 Executive Master of Communication Engineering |
| 畢業學年度: | 97 |
| 語文別: | 中文 |
| 論文頁數: | 80 |
| 中文關鍵詞: | ATM CS 資料彙整 、WiMAX 、IEEE 802.16 |
| 外文關鍵詞: | IEEE 802.16, ATM CS cell merge, WiMAX |
| 相關次數: | 點閱:18 下載:0 |
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WiMAX的全名是微波存取全球互通(Worldwide Interoperability for Microwave Access),是以IEEE 802.16 的系列寬頻無線標準為基礎,利用高效率無線訊號傳輸與處理技術,具備了傳輸距離長(最遠可達50公里)、傳輸速率高(最快可達70Mbps)、快速布建、低成本等特性,適於提供中距離無線傳輸服務,可做為無線高速接取網路的媒介。
由於WiMAX是開發中國家快速布建網路的良好選擇,也可擔任將802.11(WiFi)無線接取熱點(Hot Spot)連接到網路的媒介、或是企業與住家等環境實現最後一哩(Last Mile)的方案,目前已成為全球無線通訊產業的關注焦點。
在WiMAX 的系統裡,一個用戶端或基地台可同時擁有多個連線識別(Connection identifier ;CID),隨著網路服務的發達,在傳輸服務的大量使用下,如何減少CID的使用量,將會是一個重要的課題。
本篇論文主要提出在WiMAX MAC層中,進入ATM CS(Convergence sublayer)的cell以Skip Cell Merge 或 Control Cell Merge 方法,將進入的cell做資料彙整(merge),使原本需使用多個CID,經資料彙整後,只需共用一個CID,達到減少CID的使用量,讓基地台能服務更多的用戶端,而且減少CID的使用量也能達到節省頻寬的效果。
WiMAX, Worldwide Interoperability for Microwave Access, is a telecommunication technology based on IEEE 802.16, Broadband Wireless Access Standards, utilizing highly efficient wireless signaling transmission and processing technology. WiMAX has characteristics of long distance transmission up to 50 KM, high speed transmission up to 70 Mbps, simple deployment, and low cost. It is suitable for providing medium distance wireless transmission services and a media to the internet using high speed wireless connection.
Since WiMAX provides an excellent choice for the developing countries to swiftly deploy their network infrastructure, plays as a media of 802.11 WiFi Hot Spot connecting to the internet, or achieves the delivery of last mile for business and residential area, it is now a focal point of global wireless and telecommunication industry.
In WiMax system, a terminal or a station can have multiple CIDs at the same time. With the growth of network services, reducing the amount of CID utilization has become an important study.
In goal of the thesis is to reduce the amount of CID utilization by merging the cells entering ATM Convergence sublayer using Skip Cell Merge or Control Cell Merge methods. As the results, each station can serve more terminals and amount of CID utilization is reduced; therefore the bandwidth is reduced.
[1] IEEE. 802.16-2004: Air Interface for Fixed Broadband Wireless Access Systems. Standard, IEEE standard for local and metropolitan area networks.。
[2] IEEE. 802.16e-2005:Air Interface for Fixed and Mobile Broadband Wireless Access Systems - Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands。
[3] Jeffrey G. Andrews, Arunabha Ghosh, and Rias Muhamed著,李蔚澤、許家華 譯WiMAX 技術原理與應用 瞭解寬頻無線網路,2007。
[4] Chris Brention 、Andrew Hamilton、Gary Kessler著,林正平譯 Cisco路由器,2000。
[5] Darryl P. Black 著,顏志權 譯,交換式區域網路-管理指南,1995
[6] 陳彥文老師,網際網路交換技術,中央大學 上課教材。
[7] 曾硯彬,在MPLS網路中具服務等級的 Label Merge 效能分析,中央大學 電機研究所碩士論文,2002。
[8] 褚安智,在802.16-2004 架構下調變實測分析研究,中央大學 通訊研究所碩士論文,2006。
[9] 洪文堅、謝智強,探索WiMAX MAC技術 採需求/答允機制實現服務分級,新通訊 2006 年 5 月號 63 期。
[10] 呂秉諺,在802.16架構下之允入控制之研究,中央大學 通訊研究所碩士論文,2005。
[11] Peifang Zhou and Oliver W. W. Yang,Reducing Buffer Requirement for VC-Merge Capable ATM Switches,IEEE,1999。
[12] Indra Widjaja and Anwar I Elwalid,Performance Issues in VC-Merge Capable Switches for Multiprotocol Label Switch,IEEE,1999。
[13] Hungkei Keith Chow and Alberto Leon-Garcia,VC-Merge Capable Scheduler Design,1999。
[14] Jae Young Kim、Byung Jun Ahn、Hyeong Ho Lee,Improved VC-Merging method in MPLS Networks,IEEE,2001。