Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/19491
標題: 一個基於IEEE 802.16無線大都會區域網路標準的QoS機制設計與實作
Design of a QoS Mechanism Based on IEEE 802.16 WirelessMAN Standard
作者: 許世杰
Hsu, Shih-Chieh
關鍵字: IEEE 802.16
IEEE 802.16
Mechanism of Bandwidth Allocation
QoS
WirelessMAN
頻寬分配機制
QoS
WirelessMAN
出版社: 資訊科學與工程學系所
引用: [1] IEEE Std 802.16-2004, ”IEEE Standard for Local and Metropolitan area networks Part 16:Air Interface for Fixed Broadband Wireless Access Systems ”, pp. 1-895, Oct. 2004. [2] IEEE Std 802.16e-2005,”IEEE Standard for Local and Metropolitan area networks Part 16:Air Interface for Fixed and Mobile Broadband Wireless Access Systems ” , pp. 1-864, Feb. 2005. [3] WiMAX Forum FAQs, http://www.wimaxforum.org, 2008. [4] Intel Broadband Wireless Access White Paper, “IEEE 802.16 and WiMAX”, Intel Corporation, pp. 1-8, 2003. [5] WiMAX Forum White Paper, “WiMAX's technology for LOS and NLOS environments”, pp. 1-10, 2004. [6] Israel Koffman, Vincentzio Roman, ” Broadband Wireless Access Solutions Based on OFDM Access in IEEE 802.16”, IEEE Communications Magazine, vol. 40, pp. 96-103, April 2004. [7] Roger Marks, “IEEE Standard 802.16: A Technical Overview of the WirelessMAN Air Interface for Broadband Wireless Access”, IEEE Communications Magazine, vol. 40, pp. 98-107, June 2002. [8] Daniele Tarchi, Romano Fantacci, and Marco Bardazzi, "Quality of Service Management in IEEE 802.16 Wireless Metropolitan Area Networks", IEEE ICC, vol. 4, pp. 1789-1794, June 2006. [9] Jonny SUN, Yanling YAO, Hongfei ZHU, "Quality of Service Scheduling for 802.16 Broadband Wireless Access Systems", IEEE Conference on, vol. 3, pp. 1221-1225, May 2006. [10] Claudio Cicconetti, Luciano Lenzini, and Enzo Mingozzi, University of Pisa, Carl Eklund, Nokia Research Center, "Quality of Service Support in IEEE 802.16 Networks", IEEE Network, vol. 20, pp. 50-55, March-April 2006. [11] Harsha Gowda,Ramya Lakshmaiah,Manjot Kaur,Chandrashekar Mohanram,Manjeet Singh,Shashidhara Dongre, "A slot allocation mechanism for diverse QoS types in OFDMA based IEEE 802.16e systems", IEEE Conference on, vol. 1, pp. 13-17, Feb 2007. [12] Kitti Wongthavarawat,Aura Ganz ,"IEEE 802.16 Based Last Mile Broadband Wireless Military Networks With Quality of Service Support", IEEE Conference on, vol. 2, pp. 779-784, Oct 2003. [13] Mugen Peng, Wenbo Wang, "Advanced Scheduling Algorithms for Supporting Diverse Quality of Services in IEEE 802.16 Wireless Metropolitan Area Networks", IEEE International Symposium on, pp. 1-6, Sept 2007. [14] Hamed S. Alavi,Mona Mojdeh,Nasser Yazdani, "A Quality of Service Architecture for IEEE 802.16 Standards", IEEE Conference on, pp. 249-253, October 2005.
摘要: IEEE 802.16 標準,也稱為無線大都會區域網路標準(WirelessMAN),主要目的是在大都會區複雜的環境中,從無到有的建立並提供最後一哩的無線寬頻存取,可以提供相當於 xDSL 或是 T1/E1 等級的服務,基礎建設的成本以及施工難易度,都比現有的固接電話網路還要低,因為這些優點,IEEE 802.16標準的無線網路也很適合建設在沒有電信基礎設施的開發中國家,或是受到天災損毀及需重建的的地區。 IEEE 802.16 是這幾年最受到注意的無線網路標準之一,為了要提供給客戶一個高效率的網路服務,在標準中制定了 QoS 架構,針對五個不同等級的服務,提供了不同的參數組合,用來控制各等級不同的頻寬需求以及優先權的設定,然而在標準中並未提及如何對不同的服務等級做頻寬的分配。 本篇論文重點在於建立一個頻寬分配的機制,針對不同的服務等級,依照每個客戶的頻寬需求,做統合的分配動作,儘可能的滿足用戶端的需求,提高用戶使用網路的滿意度,論文中也實作了一個頻寬分配機制的模擬程式,讓我們可以從實驗的結果中得到,透過這樣的機制分配後,不僅可以改善網路服務的效率,也讓不同等級需求的優先性與公平性可以展現。
The main purpose of IEEE 802.16 Standard is to create “Last Mile” infrastructure for wireless broadband access in a complicated metropolitan environment. It can supply network services that are equivalent to xDSL or T1/E1 leased lines to subscribers. The primary cost and constructional difficulty of IEEE 802.16 implementation are lower than traditional wired PSTN. This makes IEEE 802.16 an attractive standard for developing countries and areas affected by natural disasters like tsunami or earthquake. IEEE 802.16 becomes the most important standard of wireless standards in recent years. The standard provides a QoS specification for five service classes with different parameter sets. The QoS is maintained by classifying bandwidth request and priority parameters. However, the standard does not define how the bandwidth is allocated for these service classes. The purpose of this thesis is to design a bandwidth allocating mechanism on a IEEE 802.16 basis. This mechanism attempts to meet the demands of bandwidth requests of five classes. We have implemented an uplink packet scheduling simulator to evaluate the performance of the proposed mechanism with varying environment settings. The simulation results have demonstrated that our proposed mechanism is capable of achieving efficient bandwidth utilization and fair bandwidth allocation among different priority classes as well.
URI: http://hdl.handle.net/11455/19491
其他識別: U0005-0107200815415700
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-0107200815415700
Appears in Collections:資訊科學與工程學系所

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