(18.232.50.137) 您好!臺灣時間:2021/05/07 03:34
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:蔡傑宇
研究生(外文):Chieh-Yu Tsai
論文名稱:一個在WiMAX換手中使用MPLS俱效率性的交換機制
論文名稱(外文):An Efficient Switching Mechanism for WiMAX Handover Using MPLS
指導教授:高勝助高勝助引用關係
指導教授(外文):Shang-Juh Kao
學位類別:碩士
校院名稱:國立中興大學
系所名稱:資訊科學與工程學系所
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:2009
畢業學年度:97
語文別:英文
論文頁數:46
中文關鍵詞:多協定標籤交換標籤分配協定移動管理全球互通微波存取無線網路
外文關鍵詞:MPLSLDPMobility ManagementWiMAXWireless Network
相關次數:
  • 被引用被引用:0
  • 點閱點閱:123
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
WiMAX是介於無線區域網路與無線廣域網路間的一個進階無線寬頻存取技術。大多數的WiMAX網路採用WiMAX Forum所提出的以Mobile IP作為其移動管理的協定。然而Mobile IP有許多已知的問題包括三角路由、複雜的信令交換以及在變動位元率的資料傳輸上如VoIP以及VOD上的效能不彰等。為使WiMAX可用性更高,以一個有效率的路由機制提升WiMAX骨幹的傳輸量、解決三角路由以降低傳輸延遲是需要的。本文提出一個有效率的移動管理機制以整合多重協定標籤交換(MPLS)網路至WiMAX網路中。特別採用了我們所提出的即席標籤分配協定(Impromptu Label Distribution Protocol, ILDP)在WiMAX網路中整合存取服務網路(Access Service Network, ASN)及連線服務網路(Connectivity Service Network, CSN)於建立虛擬通道於襯裡的MPLS網路中,以便讓移動節點(Mobile Station, MS)在不同的地點連線。在採用本機制的狀況下,傳統的Mobile IP機制則不再被需要,並且移動節點也不需做任何修即可運行本機制。根據實驗的結果,上行封包遺失率可由採用原本Mobile IP機制的7.62%下降到1.92%,且變動位元率下的平均傳輸量提升了3.37%,與Hierarchical Mobile MPLS的比較結果下,換手的連線恢復時間也由intra-domain換手的63ms降低為26ms。
WiMAX is an advanced wireless network for broadband access and is expected to fill up the gap between wireless local area network and cellular system. Most current WiMAX networks employ Mobile IP for the mobility management protocol, as proposed in WiMAX Forum. However, Mobile IP may suffer from several drawbacks such as triangle routing problem, complicated control messages, and shortage of Variable Bit Rate (VBR) data transmission such as VoIP and VOD. To make WiMAX feasible, an efficient routing mechanism to enhance the backbone routing throughput and reduce the transmission delay is necessary. In this thesis, we propose an efficient mobility management by integrating Multi-Protocol Label Switching (MPLS) into WiMAX networks. Specifically, Impromptu Label Distribution Protocol (ILDP) is proposed to establish virtual paths for Mobile Stations (MSs) and to support the coordination between different Access Service Networks (ASNs) and Connectivity Service Networks (CSNs) over the underlined MPLS connections. With applying the proposed ILDP-enabled MPLS into WiMAX networks, the conventional Mobile IP mechanism is no longer necessary. The simulation results show that the mean upstream packet lost rate can be reduced from 7.62% to 1.92% and the mean throughput is enhanced by 3.37% with VBR traffic model. Moreover, the handover restoration time is reduced from 63ms to 26ms as compared with the intra-domain mobility of Hierarchical Mobile MPLS.
1 Introduction 1
1.1 Current Mobility Management Mechanism Support in WiMAX Networks 1
1.2 Contribution 3
2 Related Work 5
2.1 WiMAX 5
2.1.1 IEEE 802.16 Specification 5
2.1.2 WiMAX Network Reference Model 6
2.2 Multiprotocol Label Switching (MPLS) 10
2.3 Mobility Support in MPLS Networks 13
2.3.1 Mobile MPLS 13
2.3.2 Optimized Mobile MPLS 14
2.3.3 Hierarchical Mobile MPLS 15
2.3.4 Summary of the development of Mobile MPLS 16
3 System Architecture 18
3.1 System Components 18
3.2 Impromptu LDP 20
3.2.1 Mobility Support of ILDP 21
3.2.2 Operating Procedure of ILDP 24
3.3 Design of ASN-GW/ILER 32
4 System Simulation and Performance Evaluation 34
4.1 Network Deployment and Setup 34
4.2 Performance Evaluation 35
4.3 Scalability 40
5 Conclusions 44
References 45
1.WiMAX Forum Network Architecture(Stage 2: Architecture Tenets, Reference Model and Reference Points)[Part 2] Release 1.1.0, July 11, 2007
2.WiMAX Forum Network Architecture (Stage 3: Detailed Protocols and Procedures) Release 1.1.0, July 11, 2007.
3.IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems IEEE Std 802.16-2004/Cor1-2005
4.Multiprotocol Label Switching, International Engineering Consortium, http://www.iec.org
5.Zhong Ren, Chen-Khong Tham, Chun-Choong Foo, Chi-Chung Ko, Integra-tion of mobile IP and multi-protocol label switching, IEEE International Conference on Communications, 2001.
6.Tingzhou Yang, Dimitrios Makrakis, Hie-rarchical Mobile MPLS: Support Delay Sen-sitive Applications Over Wireless Internet, 2001 International Conferences on Info-tech and Info-net, 2001
7.Ali Boudani, Chadi Jawhar, Bernard Cousin and Mahmoud DoughanA, Simulator for Multicast Routing over an MPLS Network, Publication Interne No.1493, IRISA, Campus Universitaire de Beaulieu, 2002.
8.Xingchuan Yuan, Lishan Kang, Yuping Chen, Mobile IP network based on hierarchical MPLS, 2005 International Conference on Wireless Communications Networking and Mobile Computing, 2005.
9.Rajendra Persaud, Dirk Sabath, Gerald Berghoff and Ralf Schanko, Performance Evaluation of MPLS and IP on an IXP1200 Network Processor, 20th International Conference on Advanced Information Networking and Applications, 2006
10.Shengling Wang, Yong Cui; Das, S., Mingwei Xu, Optimized Mobile MPLS, ICC Workshops ''08. IEEE International Conference on Communications Workshops, 2008.
11.Tao Jiang and Weidong Xiang, Multicast Broadcast Services Support in OFDMA-Based WiMAX Systems, IEEE Communications Magazine, August 2008.
12.E. Rosen et al., "Multiprotocol Label Switching Architecture," RFC 3031, January 2001.
13.L. Andersson et al., "LDP Specification" RFC 3036 January 2001.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關期刊
 
系統版面圖檔 系統版面圖檔