系統識別號 | U0002-0609201812134000 |
---|---|
DOI | 10.6846/TKU.2018.00215 |
論文名稱(中文) | 利用碰撞來避免全雙工之間的用戶間的干擾問題 |
論文名稱(英文) | An Interference Detection Full-Duplex MAC Protocol with Frame Testing for Next Generation WLANs |
第三語言論文名稱 | |
校院名稱 | 淡江大學 |
系所名稱(中文) | 資訊工程學系資訊網路與多媒體碩士班 |
系所名稱(英文) | Master's Program in Networking and Multimedia, Department of Computer Science and Information Engine |
外國學位學校名稱 | |
外國學位學院名稱 | |
外國學位研究所名稱 | |
學年度 | 106 |
學期 | 2 |
出版年 | 107 |
研究生(中文) | 宋狄峻 |
研究生(英文) | Ti-Chun Sung |
學號 | 605420073 |
學位類別 | 碩士 |
語言別 | 繁體中文 |
第二語言別 | |
口試日期 | 2018-07-06 |
論文頁數 | 51頁 |
口試委員 |
指導教授
-
石貴平(kpshih@mail.tku.edu.tw)
委員 - 王三元(sywang@isu.edu.tw) 委員 - 石貴平(kpshih@mail.tku.edu.tw) 委員 - 陳彥達(ydchen@mail.lhu.edu.tw) |
關鍵字(中) |
碰撞避免 同頻全雙工 IEEE 802.11 節點間的干擾 WLANs |
關鍵字(英) |
Avoid Collision In-Band Full Duplex IEEE 802.11 Inter-node Interference WLANs |
第三語言關鍵字 | |
學科別分類 | |
中文摘要 |
本論文針對同頻全雙工無線區域網路(In-Band Full Duplex Wireless LANs, IBFD WLANs)中,全雙工所造成的節點間干擾問題,提出有效的解決策略。近年來,隨著無線區域網路的快速發展,為了因應大量裝置的傳輸需求,許多研究提出可以在相同頻道中同時發送與接收資料的全雙工技術。雖然近年來隨著技術的進步,全雙工的自我干擾問題可以被有效地解決,但仍存在節點間的干擾問題。因此本論文提出一種新的媒體存取控制機制,用於解決因全雙工所造成的節點間干擾問題。此機制藉由發送封包的方式,來檢測是否有節點間的干擾問題。此機制可以有效的避免干擾所產生的接收失敗問題,藉此達到全雙工效能的提升。最後,通過模擬實驗結果,採用我們所提出的機制與傳統全雙工相比,效能平均提高了約20% |
英文摘要 |
This paper proposes an effective solution strategy for inter-node interference to the performance degradation caused by In-Band Full-Duplex Wireless LANs (IBFD WLANs). In recent years, the rapid development of wireless networks, in order to cope with the transmission requirements of a large number of devices, many studies have proposed full-duplex technology that can simultaneously transmit and receive data in the same channel. Although in recent years, the advancement of technology, the problem of full-duplex self-interference can be effectively solved, but there is still a problem of interference between nodes. Therefore, this paper proposes a new media access control mechanism to solve the problem of internode interference caused by full duplex. This mechanism detects whether there is interference between nodes by sending a packet. This mechanism can effectively avoid the reception failure problem caused by interference, thereby achieving the improvement of full-duplex performance. Finally, the simulation results, the performance of our proposed mechanism is improved by about 20% on average compared to the traditional full-duplex. |
第三語言摘要 | |
論文目次 |
目錄 第1章 緒論 1 1.1前言 1 1.2 研究動機 4 1.3研究目的 5 1.4論文架構 7 第2章 背景知識 8 2.1全雙工的傳輸模式 8 2.2分析後立即傳輸 9 2.3相關工作 10 第3章 預備知識 14 3.1問題陳述 14 3.2相關假設 15 第4章 下一代無線區域網路中以封包測試之干擾偵測全雙工媒體存取控制協定 17 4.1考慮場景 17 4.2方法與步驟 18 一、STA發起的IDFD方法 19 二、AP發起的IDFD方法 23 4.3MAC協定演算法 27 第5章 效能分析 28 5.1模擬場景與參數 28 5.2實驗結果 30 5.3實驗總結 32 第6章 結論 33 6.1貢獻 33 6.2未來工作 33 參考文獻 34 附錄A 38 附錄B 45 圖目錄 圖 一、(a)主要發起端為STA,次要發起端為AP;(b) 主要發起端為AP,次要發起端為STA 2 圖 二、(a) 主要傳輸干擾 (b) 次要傳輸干擾 3 圖 三、自我干擾問題 4 圖 四、(a)STA2收不到CTS (b)STA2干擾STA1 5 圖 五、MAC 訊框格式 6 圖 六、全雙工下的隱藏節點問題 6 圖 七、全雙工傳輸模式(a)雙向傳輸(b)三點傳輸 9 圖 八、同時傳輸 9 圖 九、封包標頭探測 11 圖 十、AP分配之MAC協定 11 圖 十一、FuPlex 13 圖 十二、隱藏接收端問題 15 圖 十三、密集環境 15 圖 十四、密集環境下的傳輸 17 圖 十五、IDFD概念 19 圖 十六、STA發起的第一候選節點 20 圖 十七、STA發起的第二候選節點 21 圖 十八、STA發起的兩候選節點碰撞 22 圖 十九、STA發起的訊框格式 23 圖 二十、AP發起的第一候選節點不干擾 24 圖 二十一、AP發起的第一候選節點干擾 24 圖 二十二、AP發起的第二候選節點 25 圖 二十三、AP發起的訊框格式 26 圖 二十四、一般場景 29 圖 二十五、一般之場景 29 圖 二十六、效能 30 圖 二十七、封包錯誤率 31 圖 二十八、碰撞機率 31 表目錄 表 一、參數表 28 |
參考文獻 |
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