臺灣博碩士論文加值系統

無線網狀網路(WMN)是一種新興的無線寬頻接取網路，可降低營運的成本與減少網路佈建的時間。因為多跳網路鄰近節點之間的干擾特性，嚴重地減少了節點可使用的頻寬。近年來對於多天線和多頻道無線網狀網路的研究越來越熱門，透過互不干擾的頻道，增加同時傳輸的鏈結，使得無線網狀網路的效能大幅提升。由於WMN路由器也具有固定的特性，所以我們提出避免隱藏節點的固定式頻道配置策略。繞路問題也是多跳網路的重要研究之ㄧ，如何設計出一個能夠分散網路負載的繞路方法，才能有效提升網路效能。除此之外，多跳網路的壅塞而導致封包丟棄，也會造成頻寬浪費的效應，我們提出運用線性規劃的方法，逐步推導出滿足QoS單一路徑的演算法，充分運用網路頻寬以求取最佳效能。

A Wireless Mesh Network (WMN) is a novel wireless broadband access technology. It has low cost to build up and manage. Because of the feature of interference between neighbor nodes in multi-hop networks, the available bandwidth decreases seriously. More and more researchers are interested in multi-radio and multi-channel WMN field. Increase simultaneous transmissions can greatly improve the WMN throughput. Because WMN routers are stationary, we propose a fixed channel assignment scheme for avoiding the hidden node problem. Routing is another important topic for multi-hop networks. To design a method to distribute load is a good approach for improving network performance. Moreover, the congestion in multi-hop networks will cause the loss of available bandwidth due to packets drop effect. In this paper, we adopt a linear programming scheme to design a QoS single path routing algorithm for efficiently access network bandwidth.

第壹章 緒論 1
1.1 研究背景 1
1.2 研究動機 2
1.3 研究目的 6
1.4 論文章節內容 7
第貳章 相關研究 8
2.1 頻道配置 8
2.2 QoS路徑的選擇方法 10
2.3 Load-aware頻道配置和Load-balance繞路演算法 12
2.4 令牌桶過濾器 15
第參章 Interference-free頻道配置和QoS繞路演算法 17
3.1 網路拓樸與頻道配置 17
3.2 QoS繞路演算法 24
第肆章 實驗模擬與效能評估 32
4.1 單一頻道網狀網路下的繞路策略分析 33
4.2 兩個NIC的網路產量 34
4.3 三個NIC的網路產量 37
4.4 無干擾配置的容錯性 39
4.5 Gateway導向的WMN架構 40
第伍章 結論與未來工作 42

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