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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/22993完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 逄愛君 | |
| dc.contributor.author | Ya-Chun Tang | en |
| dc.contributor.author | 湯雅淳 | zh_TW |
| dc.date.accessioned | 2021-06-08T04:36:51Z | - |
| dc.date.copyright | 2009-08-20 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2009-08-17 | |
| dc.identifier.citation | [1]MSN, http://www.msn.com
[2]Guha, S., Daswani, N., and Jain, R. “An experimental study of the Skype peer-to-peer VoIP system”, In IPTPS, 2006 [3]Skype, http://www.skype.com [4]Nextel, “Nextel Walkie-Talkie”, http://www.nextel.com [5]Motorola, “Motorola Push-to-Talk over Cellular Solution”, http://www.motorola.com/networkoperators/pdfs/new/PoC.pdf [6]Nokia, http://press.nokia.com/PR/200310/922385_5.html [7]OMA, “Push to Talk over Cellular (PoC) - Architecture”, OMA-AD-PoC V1 0-24 20060127 –C Candidate Version 1.0 V 27 Jan 2006. [8]Parthasarathy, A., “Push to talk over cellular (PoC) server”, IEEE Proceedings, Networking, Sensing and Control 2005, pages 772–776, March 2005. [9]Goode, B., “Voice over Internet Protocol (VoIP),” Proceeding of the IEEE, vol. 90, no. 9, 2002. [10]IETF. RTP: A Transport Protocol for Real-Time Applications. IETF RFC 3550, 2003. [11]IETF. SIP: Session Initiation Protocol. IETF RFC 3261, 2002. [12]Wang, S.-Y., Chou, C.-L., and Lin, C.C. “The Design and Implementation of the NCTUns Network Simulation Engine”, Elsevier Simulation Modelling Practice and Theory, 15 (2007) 57 – 81. [13]Wang, S.-Y., and Lin, Y.-B., “NCTUns Network Simulation and Emulation for Wireless Resource Management”, Wiley Wireless Communications and Mobile Computing, Vol.5, Issue 8, December 2005, pp. 899–916. [14]Lin, J.-R., Pang, A.-C., and Wang, Y.-C,. “iPTT: Peer-to-Peer Push-to-Talk for VoIP” ,accepted and to appear in Journal of Wireless Communications and Mobile Computing (WCMC), 2007. [15]Gan, C.-H., and Lin, Y.-B. “Push-to-Talk Service for ITS”, to appear in IEEE Transactions on ITS [16]E. Royer, C.-K. Toh, “A Review of Current Routing Protocols for Ad Hoc Mobile Wireless Networks,” IEEE Personal Communications, Apr. 1999. [17]Perkins, C., Bhagwat, P. , “Highly dynamic Destination-Sequenced Distance-Vector routing (DSDV) for mobile computers. ”, Proceedings of the SIGCOM '94 Conference on Communications Architecture, protocols and Applications (Aug. 1994) 234-244. [18]Perkins, C.E.; Royer, E.M., “Ad-hoc on-demand distance vector routing”, Mobile Computing Systems and Applications, 1999. Proceedings. WMCSA '99. Second IEEE Workshop on , 1999. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/22993 | - |
| dc.description.abstract | 隨按即說(Push-to-talk或簡稱為PTT)服務可提供群組通訊，讓使用者之間透過一對一或是一對多的方式互相溝通。PTT類似於傳統的無線對講機，屬於半雙功通訊，也就是在同一個時間點，群組內只允許一名使用者說話，而其他使用者只能聆聽。PTT最主要的特色在於，使用者之間的通訊可以藉由簡單的按下通話按鈕而快速被建立，並不需要其他複雜的設定。目前，針對行動通訊網路，OMA(Open Mobile Alliance)組織的PoC(Push-to-talk over Cellular)計畫已訂定出PTT服務相關的通訊協定規格。OMA所訂的PoC規格是採取集中式的架構，其缺點為需要額外的成本來維護伺服器運作以及受限於伺服器能力的系統擴充度與系統可靠性。因此，有別於OMA作法，另一套採取點對點技術的服務模式被提出，在此分散式架構中，每個裝置之間是透過網際網路互相通訊。在PTT服務中， 發話權控制(Floor control)是一個相當重要的功能。當群組中同時有多名使用者按下通話按鈕時，系統會決定出唯一一個能獲得發話權的使用者。目前的無線網路中，移動式隨意網路因其不需任何基礎建設容易建構的特性而成為許多應用的最佳選擇。在這篇論文中，我們訂定了一些評估分散式floor control效能的指標，並且利用知名的網路模擬軟體NCTUns，設計不同的模擬實驗並觀察分散式floor control在移動式隨意網路上運作的優缺點。提供未來設計及實作分散式floor control方法的系統業者其參考之依據。 | zh_TW |
| dc.description.abstract | Push-to-talk (PTT) is a service that provides one-to-one or one-to-many group communications. PTT is similar to the traditional walkie-talkie system which is a half duplex communication — while one person speaks, the other(s) just listen. The main characteristic of PTT is that the session can be established easily by pushing a button without complicated configurations. At present, PTT service is provided on cellular network. However, the interoperability is bad due to the lack of common protocol. The PoC (Push-to-talk over Cellular) project of OMA (Open Mobile Alliance) defines the protocol of PTT in cellular network. The PoC adopts centralized system architecture so that extra cost of maintaining PoC servers is required and scalability and reliability are limited by PoC servers. Different from PoC centralized approach, a distributed peer-to-peer (P2P) mode has been proposed. In P2P PTT, floor control is a critical function to service quality. When more than one user wants to speak and pushes the button, the floor owner should be quickly and properly decided by floor control. The ease of deployment makes Mobile Ad hoc NETwork (MANET) become very popular for many kinds of applications. In this thesis, we propose some performance evaluation indexes for distributed floor control over MANET, and investigate the performance of distributed floor control over MAN through a well-known network simulation tool. The simulation results indicate some guidelines for future design of distributed floor control over MANET. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T04:36:51Z (GMT). No. of bitstreams: 1 ntu-98-R96922086-1.pdf: 1088481 bytes, checksum: bdb9519c535174d8981da3888d2b7ae1 (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | 第一章 序論 1
第二章 分散式隨按即說系統 5 2.1分散式隨按即說系統 5 2.2研究動機 6 2.3分散式發話權控制方法 8 第三章 移動式隨意網路(MANET) 11 3.1移動式隨意網路 11 3.2移動式隨意網路繞送協定 12 3.2.1 DSDV繞送協定 14 3.2.2 AODV繞送協定 14 第四章 模擬結果與討論 16 4.1 效能評估指標及模擬環境介紹 16 4.1.1 效能評估指標 16 4.1.2 模擬環境介紹 18 4.2 模擬結果討論 19 第五章 結論與未來研究方向 28 5.1結論 28 5.2未來研究方向 29 參考文獻 30 | |
| dc.language.iso | zh-TW | |
| dc.subject | 移動式隨意網路 | zh_TW |
| dc.subject | 發話權控制 | zh_TW |
| dc.subject | 分散式系統 | zh_TW |
| dc.subject | 隨按即說 | zh_TW |
| dc.subject | 網路電話 | zh_TW |
| dc.subject | voice over IP | en |
| dc.subject | distributed system | en |
| dc.subject | push-to-talk | en |
| dc.subject | MANET | en |
| dc.subject | floor control | en |
| dc.title | 隨按即說服務於移動式隨意網路之分散式發話權控制效能分析 | zh_TW |
| dc.title | Performance Evaluation of Distributed Floor Control for Push-to-Talk Service over MANET | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 97-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 楊舜仁,周承復 | |
| dc.subject.keyword | 隨按即說,網路電話,移動式隨意網路,分散式系統,發話權控制, | zh_TW |
| dc.subject.keyword | push-to-talk,voice over IP,MANET,distributed system,floor control, | en |
| dc.relation.page | 31 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2009-08-18 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 資訊工程學研究所 | zh_TW |
| 顯示於系所單位： | 資訊工程學系 | |
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| ntu-98-1.pdf 未授權公開取用 | 1.06 MB | Adobe PDF |
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