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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 蔡志宏(Zse-Hong Tsai) | |
dc.contributor.author | Chao-Lung Hung | en |
dc.contributor.author | 洪肇隆 | zh_TW |
dc.date.accessioned | 2021-06-13T16:26:57Z | - |
dc.date.available | 2005-07-22 | |
dc.date.copyright | 2005-07-22 | |
dc.date.issued | 2005 | |
dc.date.submitted | 2005-07-14 | |
dc.identifier.citation | [1] ITU-T, G.992.1 – Asymmetric Digital Subscriber Line (ADSL) transceivers, ITU-T, 1999.
[2] ITU-T, Draft G.992.3 AAP –ADSL2, Asymmetric Digital Subscriber Line, ITU-T, 2002. [3] Committee T1 – Telecommunications, T1E1.4 VDSL – Very-high bit-rate Digital Subscriber Line (VDSL) Metallic Interface, Part 3 : Technical Specification of a Multi-Carrier Modulation Transceiver, Committee T1 - Telecommunications, 2001. [4] T.C. Lai, “A Broadband Access Architecture Using ADSL and WLAN”, National Taiwan University, Master Thesis, June 2004. [5] M. S. Gast, “802.11 Wireless Networks: The Definitive Guide,” 1st ed, USA, O’Reilly, April 2002, Section 3.2 [6] S. Pilosof, R. Ramjee, D. Raz, Y. Shavitt, and P.Sinha, “Understanding TCP Fairness over Wireless LAN”, INFOCOM 2003, April 2003. [7] H. Balakrishnan, V. N. Padmanabhan, and R. H. Katz, “The Effects pf Asymmetric on TCP Performance,” Proc. 3rd ACM/IEEE Intel. Conference on MobiCom, pp.77-89, Sept. 1997. [8] LARSCOM’s white paper report, “Cutting the Cost of Doing Business Using Inverse Multiplexing” http://www.vina-tech.com/pdfs/white_papers/new_wp/cut-cost-doin-bus-wimux_whpapers.pdf [9] Load sharing over multiple interfaces of Linux Advanced Routing & Traffic Control, http://lartc.org/howto/lartc.loadshare.html [10] D. Becker, Beowulf Ethernet Channel Bonding v0.07, July 1997 http://www.beowulf.org/software/bonding.html [11] 金志誠, “兩台無硬碟的Linux PC就可搞定!,” 網路通訊雜誌 152期, pp.67-71 March, 2004. [12] S. Chimmanee, K. Wipusitwarakun, P. Termsinsuwan,“Application routing load balancing (ARLB) to support QoS for VoIP application over a VPNs environment,” IEEE International Symposium on NCA 2001, pp.94-99 Oct. 2001 [13] ATM Communication in IMA Over multiple Communication Links, http://www.atmforum.com/standards/5617417.html . [14] O. Isnard, J.M. Calmel, A.L. Beylot, G. Pujolle,“A study of the inverse multiplexing for ATM (IMA) protocol,”High Performance Switching and Routing,” Proceedings of the IEEE Conference on ATM, pp.519-524, June 2000. [15] K. Sklower, B. Lloyd, G. McGregor, D. Carr,“The PPP Multilink Protocol (MP),” IETF RFC 1717, Nov. 1994. [16] M. A.Brown, Traffic Control HOWTO v1.0, Sept. 2003, http://linux-ip.net/articles/Traffic-Control-HOWTO/ [17] 中正大學即時系統實驗室, Bonding Plus, http://penguin.cs.ccu.edu.tw/BondingPlus/cBonding/howto.html [18] iproute2 ver ss020016, iproute2 utility suite howto, June 1999, http://www.policyrouting.org/iproute2-toc.html [19] iptables v1.2.9, The netfilter/iptables project, http://www.netfilter.org/ [20] Cisco Internetworking technology handbook, Interior Gateway Routing Protocol (IGRP), http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/igrp.pdf [21] Lucent Technologies` white paper report, “Inverse Multiplexing for ATM, Expanding the Revenue Opportunities for Converged Services over ATM,” Feb. 2001. [22] A. Downey, 'Using Pathchar to Estimate Internet Link Characteristics,' in Proceedings of ACM SIGCOMM, pp. 241-294, Sept. 1999. [23] W. Wang, S.C. Liew, O.K. Li, “Solutions to Performance Problems in VoIP Over a 802.11 Wireless LAN,” IEEE Transactions on Vehicular Technology, vol.54, NO.1, Jan. 2005. [24] ns2-The network simulator http://www.isi.edu/nsnam/ns/ [25] IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems, IEEE Std 802.16-2004 (Revision of IEEE Std 802.16-2001) [26] Intel Broadband Wireless Access White paper 2003, http://www.intel.com/ebusiness/pdf/wireless/intel/80216_wimax.pdf [27] J. Moy, “OSPF version 2,” IETF RFC 2178, July 1997. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/38141 | - |
dc.description.abstract | 為因應使用者對頻寬的需求日益增加,雖然目前已有許多成熟之寬頻網路技術,如ADSL、Cable Modem等,但其存取速度仍不足以滿足使用者日漸增加的需求。然而若要舖設Ethernet或光纖等高速之線路到用戶端,則又需要花費大量的成本。因此所謂WLAN-ADSL雙網接取系統(WLAN-ADSL Broadband Access WABA系統)以同時使用WLAN無線點對點之戶外連線與已存在之ADSL線路來共同作為寬頻之接取。以達到輕濟、花費較少之舖設成本,並提供快速之網路接取速度服務。因為戶外之無線網路可能因為氣候或其它因素而有所不穩定的情況,所以仍需保留原本較為穩定之ADSL線路。一方面做為網路之備援,另一方面也為網路應用提供較穩定之網路服務。
由於無線網路具較不穩定及ADSL上下行頻寬不對稱之極為不同之特性,在進行寬頻接取時並不適合使用一般的Ethernet trunk或multi-link ppp等方式來做為線路間之負載平衡。對於這樣的情形,WABA雙網接取系統提出一個適應之路由決策法則,依據不同服務品質需求之網路應用,選擇使用符合他們要求特性的線路。 而當WABA系統要進入多人接取的情境下時,在無線網路端便多了需要使用者來競爭無線網路頻寬的問題。因為802.11WLAN的DCF MAC機制是由使用者與無線網路接取點(Access Point ,AP)共同來競爭即時的網路頻寬使用權,因此衍伸出使用者無線頻寬分配不均及上下傳網路交通流量Unfairness的問題,如何搭配ADSL及WLAN兩種特性迥異的網路接取技術來提供多使用者高頻寬及高品質的寬頻網路服務建置策略,便是本論文的研究論述重點。 | zh_TW |
dc.description.abstract | According to the rapid growth of amount on Internet traffic, such as VoIP , VoD these multimedia network services, the demand of bandwidth is not satisfied in traditional broadband access strategies. Thus, WABA is introduced to be a new broadband access architecture, using outdoor wireless Lan a/b/g solution to provide users an additional link to increase their access bandwidth cheaply and quickly. Though WABA use a wireless link with higher bandwidth (about 4~27 Mbps in practice), we still recommend that users not to put away traditional broadband access techniques with lower bandwidth such as ADSL and Cable modem. Because of the stability of ADSL is much higher than outdoor wireless Lan, it can provide a stable bandwidth or even be a backup when the wireless access is unstable or failed. Thus, users can easily access to broadband network with high bandwidth and high reliability. In Multi-user strategy, according to 802.11 MAC, there will be several issues on the competition on wireless link bandwidth. We will try to adapt our algorithm to fit the multi-user strategy for best utilization and prove that in our simulation. The detailed system architecture will be addressed later. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T16:26:57Z (GMT). No. of bitstreams: 1 ntu-94-R92942101-1.pdf: 1355935 bytes, checksum: bfab67bb91485f26b8e186c9a4387b89 (MD5) Previous issue date: 2005 | en |
dc.description.tableofcontents | 第一章 緒論 1
1.1 研究動機與目標 1 1.2 問題敘述 2 1.3 相關研究及設計 4 1.3.1 INVERSE MULTIPLEXING反向多工法 4 1.3.2 LINUX TEQL & BONDING多工法 7 1.3.3以SOURCE POLICY 路由結合NAT法 8 1.3.4 APPLICATION ROUTING LOAD BALANCING 9 1.3.5 OSPF協定 10 1.4 章節架構 11 第二章 ADSL與WLAN雙網寬頻接取系統 13 2.1 WABA雙網接取系統架構及功能 13 2.2 ADSL-WLAN雙網接取系統在多重使用者環境下之架構 15 2.3 研究議題 16 2.4 系統分析與路由決策流程 22 2.5 網路交通分類 23 2.6 寬頻接取路徑選取法則 25 第三章 系統模擬與分析 31 3.1 無線網路上下傳不公平性問題之模擬結果 31 3.2 ADSL-WLAN雙網接取系統多用戶模擬架構與結果 33 3.2.1LONG-LIVED TCP傳輸效能測試 35 3.2.2 LONG-LIVED TCP & REALTIME MEDIA TRAFFIC傳輸效能測試 38 3.2.3 LONG-LIVED TCP & REALTIME MEDIA & WEB TRAFFICS傳輸效能測試 44 3.2.4在不同頻寬組合下之LONG-LIVED TCP & VOIP & WEB TRAFFICS傳輸效能測試 50 3.2.5在無線網路中使用者互動情形對於本系統影響之研究 51 第四章 結論與未來發展 57 4.1 結論.......................................................................................................................57 4.2 未來發展...............................................................................................................59 | |
dc.language.iso | zh-TW | |
dc.title | ADSL與WLAN雙網接取系統在多重使用者環境下之研究 | zh_TW |
dc.title | ADSL-WLAN Dual Access Network in Multi-User Architecture | en |
dc.type | Thesis | |
dc.date.schoolyear | 93-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 張時中(Shi-Chung Chang),陳銘憲,孫雅麗,涂元光 | |
dc.subject.keyword | 雙模網路接取,無線網路, | zh_TW |
dc.subject.keyword | ADSL,WLAN,Dual-network, | en |
dc.relation.page | 63 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2005-07-15 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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