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| 研究生： |
羅國元 Luo, Guo-Yuan |
|---|---|
| 論文名稱： |
基於IEEE 802.11之無線隨意網路之服務品質保證路由協定 QoS Routing under IEEE 802.11 Based Channels for Wireless Ad Hoc Networks |
| 指導教授： |
蘇賜麟
Su, Szu-Lin |
| 學位類別： |
碩士 Master |
| 系所名稱： |
電機資訊學院 - 電腦與通信工程研究所 Institute of Computer & Communication Engineering |
| 論文出版年： | 2015 |
| 畢業學年度： | 103 |
| 語文別： | 中文 |
| 論文頁數： | 37 |
| 中文關鍵詞： | 無線隨意網路 、服務品質保證 、路由協定 、IEEE 802.11 |
| 外文關鍵詞： | wireless ad hoc networks, QoS, routing protocol, IEEE 802.11 |
| 相關次數： | 點閱：81 下載：0 |
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在無線隨意網路(wireless ad hoc networks)中服務品質(QoS)主要取決於剩餘可使用的無線網路資源。剩餘的無線網路資源不只取決於實體層(physical-layer)使用的技術，也與媒介存取層(MAC)協定相關。許多無線隨意網路建立在IEEE802.11分散式協調功能(DCF)之上，相關的服務品質保證研究主要是依照現有的負載估計出剩餘的無線網路資源，但並沒有考慮碰撞、重傳以及緩衝佇列溢出的影響，導致存取控制(admission control)不精確。在這篇論文中，我們提出一個IEEE802.11分散式協調功能下無線隨意網路服務品質保證路由協定，包括精確的剩餘無網路資源分析及估測。我們會先推導數學模型，並用來分析剩餘的無線網路資源是否足夠，這個數學模型可以更加精準的評估碰撞、重傳以及緩衝佇列溢出的影響。我們再根據這個數學模型建立分散式存取控制，並將此存取控制置入具服務品質保證之路由協定中。模擬結果顯示，我們的提出的路由協定之端對端的延遲與封包遺失率比傳統路由協定有更好的性能表現。
SUMMARY
Quality-of-service (QoS) in wireless ad hoc networks relies on the evaluation of residual wireless resources. Residual wireless resources not only depend on the physical-layer techniques, but also depend on the medium access control (MAC) protocol. For IEEE 802.11 based systems, existing QoS approaches the residual wireless resources according to the current loadings only, without taking into account the joint effect of collision, retransmission limit, and buffer overflow. we propose a QoS routing protocol based on the IEEE 802.11 DCF for wireless ad hoc networks, which includes a precise estimation of residual wireless resources.
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校內：2020-09-08公開校外：不公開