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系統識別號 U0002-0908201716064700
中文論文名稱 未來無線區域網路下具電量控制之無干擾全雙工媒介存取控制協定設計
英文論文名稱 Interference Free Full Duplex MAC Protocol with Power Control for Next Generation WLANs
校院名稱 淡江大學
系所名稱(中) 資訊工程學系資訊網路與多媒體碩士班
系所名稱(英) Master’s Program in Networking and Multimedia, Department of Computer Science and Information Engine
學年度 105
學期 2
出版年 106
研究生中文姓名 莊家
研究生英文姓名 Chia Chuang
學號 604420041
學位類別 碩士
語文別 中文
第二語文別 英文
口試日期 2017-07-14
論文頁數 52頁
口試委員 指導教授-石貴平
委員-王三元
委員-陳彥達
委員-石貴平
中文關鍵字 未來無線區域網路  全雙工  內部節點干擾問題  隱藏接收者問題  電量控制 
英文關鍵字 Next Generation WLANs  Full duplex  Inter-Node Interference  Hidden Receiver Problem  Power Control 
學科別分類
中文摘要 近年來無線網路的蓬勃發展,日常生活中隨處可見的行動裝置也能夠使用無線網路進行資料的傳輸,下一代無線區域網路標802.11ax 也在2014年開始建置,其目標相較於前一代無線區域網路標準提升四倍的傳輸效能,所以未來我們勢必要使用全雙工(Full duplex)技術來因應未來對傳輸效能的要求。當使用全雙工技術時,會產生內部節點干擾問題及隱藏接收者問題,為了避免上述之問題,本論文設計具電量控制之無干擾全雙工媒介存取控制協定,透過分析干擾範圍與傳輸範圍來整理出傳輸能量對其他節點干擾影響之關係性,讓節點能完全避免內部節點干擾問題及隱藏接收者問題,大幅增加使用全雙工技術時之傳輸效能。
英文摘要 Recently, IEE 802.11ax task group has started to develop a new standard for next generation wireless local area networks (WLANs) since 2014. One of goals is four times throughput improvement compared with IEEE 802.11ac. Thus, the researchers focus on full duplex (FD) communications to achieve improvement of throughput. However, there are Inter-Node Interference (INI) and Hidden Receiver Problem (HRP) in FD communications, which cause decrement of throughput. The paper analyzes the relationships among the transmission range, and interference range in case that FD is adopted and proposes an Interference Free Full Duplex with Power Control (IFFD) MAC protocol to avoid interference for next generation WLANs. IFFD cannot only prevent INI and HRP problems but also can increase network performance. Simulation results show that IFFD outperforms against other protocols in packet error rate and network throughput.
論文目次 Contents
1. Introduction 1
1.1 Motivation 3
1.2 Organization 4
2. Preliminaries 6
2.1 The overview of Full Duplex in WLANs 6
2.1.1 Interference Problem in FD 8
2.2. Related works 12
3. Problem Statements 17
3.1 Hidden Receiver Problem (HRP) 17
3.2 Analysis 18
4. Interference Free Full Duplex MAC with Power Control (IFFD) 22
4.1 The concept of IFFD 22
4.2 The analysis of IFFD 25
4.3 The operation process of IFFD 26
4.3.1 The situation of Hidden Receiver Problem 26
4.3.2 The situation of Inter-Node Interference 28
4.3.3 IFFD in AFD 30
4.3.4 IFFD in SFD 32
4.4 DATA transmission in IFFD 33
5. Simulation 37
6. Conclusion 41
Bibliography 42
Appendix 45

List of Figures
Figure. 1. Full duplex communications 2
Figure. 2. Transmission modes in FD 7
Figure. 3. STA-initialed Full Duplex (SFD) 8
Figure. 4. AP-initialed Full Duplex (AFD) 8
Figure. 5. Self-Interference 10
Figure. 6. INI in SFD 11
Figure. 7. INI in AFD 11
Figure. 8. A-Duplex MAC 13
Figure. 9. A-Duplex MAC 13
Figure. 10. PoCMAC 14
Figure. 11. FuPlex MAC 15
Figure. 12. FuPlex MAC 16
Figure. 13. Hidden Receiver Problem (HRP) 18
Figure. 14. Transmission Range 19
Figure. 15. Interference Range 19
Figure. 16. HRP with TR and IR 21
Figure. 17. Basic idea of IFFD 24
Figure. 18. Suitable transmission power 24
Figure. 19. The situation of Hidden Receiver Problem 27
Figure. 20. IFFD in Hidden Receiver Problem 28
Figure. 21. The situation of normal Inter-Node Interference 29
Figure. 22. IFFD in INI 29
Figure. 23. The summary of IFFD 30
Figure. 24. IFFD in AFD 31
Figure. 25. Scenario of SFD 32
Figure. 26. The structure of CTS 33
Figure. 27. Operation example of IFFD in SFD 33
Figure. 28. ACK time out problem 35
Figure. 29. Solution of ACK time out problem 36
Figure. 30. The comparisons of throughput 38
Figure. 31. The comparisons of packet error rate of downlink 39
Figure. 32. The overall of packet error rate 40

List of Tables
Table 1: Simulation parameters 37

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