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系統識別號 U0002-0206200822193300
中文論文名稱 應用關聯鄰近圖塑洞法於無線感測網路之避洞路由
英文論文名稱 A Hole Avoiding Routing Protocol with Relative Neighborhood Graph for Wireless Sensor Network
校院名稱 淡江大學
系所名稱(中) 資訊工程學系碩士班
系所名稱(英) Department of Computer Science and Information Engineering
學年度 96
學期 2
出版年 97
研究生中文姓名 李良乙
研究生英文姓名 Liang-Yi Lee
學號 695410729
學位類別 碩士
語文別 英文
口試日期 2008-05-29
論文頁數 75頁
口試委員 指導教授-黃仁俊
委員-林志豪
委員-蔡智孝
委員-黃仁俊
委員-王英宏
中文關鍵字 無線感測網路  路由協定  避洞路由  關連鄰近圖  最短路徑 
英文關鍵字 Wireless Sensor Network  Routing Protocol  Relative Neighborhood Graph  Hole Avoiding Routing  Shortest Path 
學科別分類 學科別應用科學資訊工程
中文摘要 由於無線感測網路(wireless sensor networks, WSNs)之實務應用,受現實中各式各樣的地理環境,使得"洞"的產生及位置是很難避免,也很難去得知的。所以在進行封包傳送路由建置時,傳送此路由會受到因感測網路中有“洞”的存在而造成封包在傳遞時,可能因此延遲甚至遺失。為了解決這些問題,我提出一個新的路由方法(RNG Hole Avoiding Routing protocol, RNGHAR),可以塑造出在無線感測網路中的"洞",使得在進行事件封包傳送時,如果會遇到"洞"時,可事先得知、並避開經過洞的路徑。本篇論文提出 RNGHAR這個方法,是利用關聯鄰近圖(relative neighborhood graph, RNG)的路由演算法,勾勒出在無線感測網路中的"洞",進而可以收集到"洞"的資訊,接著在進行事件封包傳送時,利用此資訊建構一條避開"洞"的路由,因而達到事件封包可事先避開"洞",且可沿著最短路徑,由來源的位置順利傳送到目的地。由模擬結果顯示,我所提出的方法在平均節點數、封包傳送成功率以及能量的消耗上比起現存的方法都來的好。
英文摘要 In wireless sensor networks, “holes” are hardly to know its location and avoid either because of various actual geographical environments. A hole can be dynamically formed due to unbalanced deployment, failure or power exhaustion of sensors, animus interference, or physical barriers such as buildings or mountains. Hence, we hope to propose the RNG Hole Avoiding Routing protocol, RNGHAR which can model “holes” existed in wireless sensor network and a event packets can avoid meeting a “hole” in advance instead of bypassing a hole when it meets the hole.

This thesis proposes a novel algorithm RNGHAR which uses RNG (relative neighborhood graph) modeling holes then we can collect hole information in order to construct in advance hole avoiding routing path. Hence event packets will be guided to overcome the hole and move along the shortest path from source node to the sink node. Simulation studies show that my proposed method achieve good performance in terms of average hop count, packet delivery success rate and power consumption in comparison with the existing protocols.
論文目次 Contents
誌謝
中文摘要
Abstract
List of Figures III
List of Tables V
1 Introduction …………………………………………1
2 Related Work ………………………………………..4
2.1 Non-Prediction Approaches…………………………..5
2.2 Prediction Approaches……………………………..…7
2.3 Summary........................................12
3 The RNG Hole Avoiding Routing protocol…….....14
3.1 Network Environments and Assumption…………....16
3.2 Three Phases of Protocol……………………………17
3.2.1 Relative Neighborhood Graph Construction Phase…..18
3.2.2 Hole Detection Phase…………………………………22
3.2.2.1 Circle Detection Step………………………….…22
3.2.2.2 Hole Estimation Ste……………………...………30
3.2.2.3 Hole Boundary Step………………………...……33
3.2.3 Create Hole Avoiding Routing Path Phase……………38
4 Simulation Results and Analysis…………..………44
4.1 Simulation Environment………………….………..45
4.2 Results and Analysis……………………………….46
5 Conclusion and Future Work……………..……….51
5.1 Conclusion…………………………………………..51
5.2 Future Work…………………………………………52
References ……………………………………………53
Appendix A. Conference Version …………………...58


List of Figures

Figure 1-1: An example of a hole……………………………………………………..2
Figure 2-1: Example of GPRS………………………………………………………...5
Figure 2-2: Example of TPGF………………………………………………………....6
Figure 2-3: The major disadvantage of PAGER………………………………………7
Figure 2-4: Example of Black Region…………………………………………………9
Figure 2-5: (a) TENT rule’s criterion (b) Example of BOUNDHOLE……………...10
Figure 2-6: An Example of HAIR Protocol………………………………………….12
Figure 2-7: The edge (u, v) does not belong RNG because of w…………………….13
Figure 3-1: Example of sensor network environment………………………………..17
Figure 3-2: Three Phases Process Flow Chart……………………………………….18
Figure 3-3: Example of RNG Graph Construct……………………………………...20
Figure 3-4: Relative Neighborhood Graph Construction Flow Chart……………….21
Figure 3-5: Hole Detection Flow Chart……………………………………………...22
Figure 3-6: Example of Wireless Sensor Network Framework……………………...23
Figure 3-7: RNG Graph of Constructed from Wireless Sensor Network Framework.24
Figure 3-8: Tree of diversion from RNG…………………………………………….29
Figure 3-9: Circle Detection Flow Chart……………………………………………..30
Figure 3-10: Concept of Hole Estimation…...……………………………………….32
Figure 3-11: Hole Estimation Flow Chart……………………………………………33
Figure 3-12: Example of Hole Boundary…………………………………………….37
Figure 3-13: Hole Boundary Flow Chart…………………………………………….38
Figure 3-14: Example of Related Location of Sink, Event and Hole………………...40
Figure 3-15: Example of Create Hole Avoiding Routing Path………………………42
Figure 3-16: Create Hole Avoiding Routing Path Flow Chart……………………….43
Figure 4-1: The Average Hops of RNGHAR and GPSR in Different Hole Size of Circular………………………………………………………………….47
Figure 4-2: The Comparison of Packet Delivery Success Rate of RNGHAR and GPSR Mechanism………………………………………………………48
Figure 4-3: Counterclockwise Direction of GPSR Right-Hand-Rule..........................49
Figure 4-4: The Comparison of Remaining Energy of Nodes on Boundary of Hole of RNGHAR and GPSR Mechanism............................................................50


List of Tables

Table 3-1: Node Information Table……………………………………..15
Table 3-2: Construction Packet………………………………………….18
Table 3-3: Circle Detection Packet…………………………………...…23
Table 4-1: Parameters for simulation……………………………….…...46
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