臺灣博碩士論文加值系統

隨著無線網路科技的蓬勃發展，無線區域網路和無線感測網路已成為我們生活中重要的一部分。由於無線區域網路和無線感測網路皆使用2.4Ghz頻帶，在同時使用情況下會產生互相干擾的情形。由於無線區域網路具有發射功率較大和時間分辨率較具侵略性的特點，會導致無線感測網路的傳輸效率大受影響。本論文對無線區域網路和無線感測網路共存時發生的干擾現象進行研究，並提出基於保護策略的異質節點共存協議。在本論文所提出的方法中，我們在無線感測網路中放置保護節點，保護節點會在適當時機發出訊號以保護無線感測網路封包傳輸不受無線區域網路干擾，而一般無線區域網路節點則會根據保護節點事先規劃好的時程表調整醒睡周期。實驗表明，相對於傳統無線感測網路協定，保護節點可以提升無線感測網路的封包傳送成功率1.8倍。如此，傳輸保護策略協定的提出不僅可提高無線感測網路封包傳送成功率，同時可保證無線感測網路節點不會因為封包丟失而進行額外重送動作，進而延長無線感測網路壽命。

Abstract ii
List of Contents iii
Chapter 1 Introduction 1
Chapter 2 Related Work 5
Chapter 3 WSNs Transmission Protection Protocol (WTPP) 10
3.1 The reasons of the collision between WLANs and WSNs 10
3.2 The design of WTPP 12
3.2.1 Protection signal channel selection 14
3.2.2 Protection scheduler 16
Chapter 4 Performance Evaluation 19
4.1 Implementations 19
4.2 Experiments 23
Chapter 5 Conclusion 32

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