IEEE802.16無線大都會區域網路中高效率頻寬分配機制之設計與實作

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 學位論文 > Item 987654321/35728

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題名:	IEEE802.16無線大都會區域網路中高效率頻寬分配機制之設計與實作
其他題名:	Design and implementation of high performance bandwidth allocation scheme for IEEE 802.16 wireless metropolitan area networks
作者:	許喬鈞;Hsu, Chiao-chun
貢獻者:	淡江大學電機工程學系碩士班許獻聰;Sheu, Shiann-tsong
關鍵詞:	無線大都會區域網路;服務架構;頻寬分配;WiMAX;IEEE802.16;BS;SS;Scheduling;QoS
日期:	2006
上傳時間:	2010-01-11 07:04:02 (UTC+8)
摘要:	IEEE 802.16是目前最受矚目的長距離無線網路協定之一，主要目的為在都會區提供容易架設且高效率及高頻寬的網路，為了在複雜的環境之中，提供客戶端一個高效率的服務，IEEE 802.16中制定了詳細的QoS架構，針對不同的需求而有等級及優先權的排列，但在協定之中並未十分仔細的對需求的分配有提出相對應的方法。在這篇論文之中，我們詳細定義了各個服務的分配機制，使得每個客戶端的需求都能依照各個連線的狀況而被滿足，此QoS架構包括了最主要的頻寬分配，服務分類及頻寬需求申請的配置。最後我們以我們所規劃的方法與目前現有機制的比較，結果中可以表現出在頻寬分配的效率方面，此架構不僅可以滿足QoS及公平性，並且有著較有效率的分配。 IEEE 802.16 is considered today as the most promising technology to build a simple, high performance and high bandwidth wireless network into metropolitan areas. For providing a high performance services in complicated environments, QoS (Quality of Service) architecture are designed in IEEE 802.16 for scheduling services for different requests. However, the corresponding mechanisms for scheduling are not described in detail in the standard. In this paper, we designed an allocation mechanism for different services that could satisfy the requests of SS (Subscriber Station) by the connection conditions. In the allocation mechanism, the bandwidth allocation, services classification and bandwidth request schedule policy are considered. In the simulation, we have a comparison of the WFQ (Weight Fair Queue) and our algorithm. By the result, it could be observed that our algorithm could not only satisfy the fairness and QoS, but also has better efficiency in scheduling.
顯示於類別:	[電機工程學系暨研究所] 學位論文

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