(18.208.187.169) 您好!臺灣時間:2019/10/24 07:15
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
本論文永久網址: 
line
研究生:粘耀文
研究生(外文):Yau-Wen Nian
論文名稱:在無線感應器網路中具有省電機制並且採用對角線路徑的方向性擴散
論文名稱(外文):An Energy-Efficient Diagonal-Based Directed Diffusion for Wireless Sensor Networks
指導教授:許健平許健平引用關係
學位類別:碩士
校院名稱:國立中央大學
系所名稱:資訊工程研究所
學門:工程學門
學類:電資工程學類
論文出版年:2002
畢業學年度:90
語文別:英文
論文頁數:44
中文關鍵詞:對角線六角形網方向性散佈時槽重新使用分時多重存取無線感應器網路
外文關鍵詞:wireless sensor networkhexagonal meshdirected diffusiontime slot re-usetime division multiple access (TDMA)diagonal
相關次數:
  • 被引用被引用:0
  • 點閱點閱:148
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0

無線感應器網路(wireless sensor network)是由一群感應器透過無線媒體(wireless medium),藉以達成分散式的感應工作。感應器主要是在特定的感應範圍內用來監測某些物體所產生的變化,並且藉由無線感應器網路回傳給使用者得知這些觀察結果,經由這種模式,使用者可以在遠端透過存取某個感應器得知一些有意義而且有用的資訊。

每個感應器具有有限的記憶體以及計算能力,並且他們的運作受到能源的限制,一但感應器的能源用盡,則該感應器即無法運作,因此能源的考量在無線感應器網路中非常重要。

在本篇論文中,我們考慮感應器是以六角形網的形狀所排列,並使用TDMA的方式傳送資料,探討有效率的方向性擴散(directed diffusion)問題。我們在探討方向性擴散的問題時,會考慮到收送兩端可能的情況,例如:一點對全區域(sink-to-all)的傳播、一點對一區域(sink-to-region)的傳播、一點對多區域(sink-to -multi-regions)的傳播等傳播方式。如何在無線感應器網路上建構出能夠共用並且節省能源的時槽分配,即為本篇論文中最重要的研究核心。我們的目的是希望利用找出的時槽分配提昇方向性擴散的效能。


In this thesis, we present a new energy-efficient directed diffusion
protocol by using a proposed diagonal-based hexagonal-mesh scheme for a
wireless sensor network. The wireless sensor network is more reasonable to
carefully build a fixed-topological wireless network environment than the
conventional MANET due to the low mobility. Therefore, all sensor nodes are
arranged into a fixed-topological wireless network structure, namely the
hexagonal-mesh, while the MAC protocol is adopted the periodic
active-and-sleep model. Wireless sensor networks use battery-operated
computing and sensing devices. The directed diffusion is mainly operated on
the diagonal-paths of the hexagonal-mesh under the energy-efficient
consideration. To achieve the energy-efficient purpose, our diagonal-based
directed diffusion scheme has the following main contributions; (1) a
periodic active-and-sleep MAC protocol on TDMA channel model is designed, (2)
a periodic backbone-path-exchange scheme is periodically performed on the
diagonal-mesh to consider the per-node fairness problem, (3) three kinds of
directed diffusion communication applications are developed based on the
diagonal-based scheme. Finally, performance analysis result is finally
demonstrated to illustrate the energy-efficient achievement of our proposed
scheme.


1 Introduction 1
2 Basic Idea and Challenges 4
3 The Diagonal-Based Energy-Efficient Channel Scheduling 10
3.1 The Periodic Backbone-Path-Exchange Scheme . . . . . . . . . . . 10
3.2 The Periodic Active-and-Sleep Time Scheduling . . . . . . . . . . 12
3.2.1 Time-Slot Scheduling for Interest Propagation Phase . . . . .17
3.2.2 Time-Slot Scheduling for Data Propagation Phase . . . . . . .18
4 Energy-Efficient Diagonal-Based Directed Diffusion Protocol 23
4.1 Sink-to-All Diffusion Operation . . . . . . . . . . . . . . . . . 23
4.2 Sink-to-Region Diffusion Operation . . . . . . . . . . . . . . . .26
4.3 Sink-to-Multi-Regions Diffusion Operation . . . . . . . . . . . . 31
5 Experimental Results 33
5.1 Performance of Sink-to-All Diffusion Operation . . . . . . . . . .34
5.2 Performance of Sink-to-Region Diffusion Operation . . . . . . . . 36
5.3 Performance of Sink-to-Multi-Regions Diffusion Operation . . . . .39
6 Conclusions 42


[1] W. Heinzelman, A. Chandrakasan, and H. Balakrishnan, "Energy-Efficient Communication Protocols for Wireless Microsensor Networks," in Proceedings of Hawaiian International Conference on Systems Science, January, 2000. [2] A. Manjeshwar and D. P. Agrawal, "TEEN: a routing protocol for enhanced efficiency in wireless sensor networks," in Parallel and Distributed Processing Symposium., Proceedings 15th International, pp. 2009-2015, 2001. [3] K. Sohrabi, J. Gao, V. Ailawadhi, and G. J. Pottie, "Protocols for self-organization of a wireless sensor network," IEEE Personal Communications, vol. 7, pp. 16-27, October, 2000. [4] K. Sohrabi and G. J. Pottie, "Performance of a novel self-organization protocol for wireless ad-hoc sensor networks," in Vehicular Technology Conference, vol. 2, pp. 1222-1226, 1999. [5] G. J. Pottie and W. J. Kaiser, "Wireless Integrated Network Sensors," Communications of ACM, May, 2000. [6] D. Estrin, R. Govindan, J. Heidemann, and S. Kumar, "Next Century Challenges: Scalable Coordination in Sensor Networks," in Proceedings of the 5th Annual ACM/IEEE International Conference on Mobile Computing and Networking(MOBICOM), pp. 263-270, 1999. [7] L. Schwiebert, S. K. S. Gupta, and J. Weinmann, "Research Challenges in Wireless Networks of Biomedical Sensors," in The seventh annual international conference on Mobile computing and networking, July, 2001. [8] W. R. Heinzelman, J. Kulik, and H. Balakrishman, "Adaptive protocols for information dissemination in wireless sensor networks," in Proceedings of the fifth annual ACM/IEEE international conference on Mobile computing and networking, pp. 174-185, August, 1999. [9] R. S. Bhuvaneswaran, J. L. Bordim, J. Cui, and K. Nakano, "Fundamental protocols for wireless sensor networks," in Parallel and Distributed Processing Symposium., Proceedings 15th International, pp. 1369-1376, 2001. [10] J. Mirkovic, G. P. Venkataramani, S. Lu, and L. Zhang, "A self-organizing approach to data forwarding in large-scale sensor networks," in Proceedings of IEEE International Conference on Communications (ICC), June, 2001. [11] S. Lindsey, C. Raghavendra, and K. Sivalingam, "Data gathering in sensor networks using the energy*delay metric," in Parallel and Distributed Processing Symposium., Proceedings 15th International, pp. 2001-2008, 2001. [12] C. Intanagonwiwat, R. Govindan, and D. Estrin, "Directed Diffusion: A Scalable and Robust Communication Paradigm for Sensor Networks," in Proceedings of the 6th Annual ACM/IEEE International Conference on Mobile Computing and Networking, pp. 56-67, August, 2000. [13] W. Ye, J. Heidemann, and D. Estrin, "An Engery-Efficient MAC Protocol for Wireless Sensor Networks," in Proceedings of IEEE INFOCOM 2002, April, 2002. [14] W.-H. Liao, Y.-C. Tseng, and K.-P. Shih, "A TDMA-based Bandwidth Reservation Protocol for QoS Routing in a Wireless Ad Hoc Network," in IEEE ICC, 2002.

QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔