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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 黃寶儀(Polly Huang) | |
| dc.contributor.author | Ling-Yen Wu | en |
| dc.contributor.author | 吳伶言 | zh_TW |
| dc.date.accessioned | 2021-06-12T18:30:26Z | - |
| dc.date.available | 2012-08-17 | |
| dc.date.copyright | 2011-08-17 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-08-08 | |
| dc.identifier.citation | Reference
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[6] Hsing-Jung Huang, Ting-Hao Chang, Shu-Yu Hu and Polly Huang, “Magnetic Diffusion: Scalability, Reliability, and QoS of Data Dissemination Mechanisms for Wireless Sensor Networks,” Computer Communications, Vol. 29, No. 13,, pp. 2482-2493, Aug. 2006. [7] Chieh-Ting Huang, Tsung-Han Lin, Ling-Jyh Chen and Polly Huang, “XD: A Cross-Layer Designed Data Collection Mechanism for Mission Critical WSNs in Urban Buildings,” In Proceedings of the First International Workshop on Mobile Urban Sensing (MobiUS 2009), in conjunction with International Conference on Mobile Data Management (MDM 2009), Taipei, Taiwan, May 2009. [8] L. Breslau, D. Estrin, K. Fall, S. Floyd, J. Heidemann, A. Helmy, P. Huang, S. McCanne, K. Varadhan, Y. Xu, H. Yu, 'The VINT Project, Advances in Network Simulation,' IEEE Computer, Vol. 33, No. 5, pp. 59-67, May 2000 [9] Open-source operating system designed for wireless embedded sensor networks – TinyOS. http://www.tinyos.net/ [10] Miklos Maroti, Branislav Kusy, Gyula Simon and Akos Ledeczi, “The Flooding Time Synchronization Protocol,” In Proceedings of the Second International Conference on Embedded Networked Sensor Systems (SenSys 2004), November 2004. [11] Thomas Kunz, “Reliable Multicasting in MANETs”, Contract Report, Defence R&D Canada – Ottawa Communications Research Centre, July 2003. [12] Katayoun Sohrabi, Jay Gao, Vishal Ailawadhi and Gregory J Pottie, “Protocols for self-organization of a wireless sensor network, “ Personal Communications, IEEE, October 2000. [13] K. Arisha, M. Youssef, and M. Younis. “Energy-aware TDMA-based MAC for sensor networks,” In IEEE Workshop on Integrated Management of Power Aware Communications, Computing and NeTworking (IMPACCT 2002), May 2002. 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Roman, 'Reliable clinical monitoring using wireless sensor networks: Experiences in a step-down hospital unit,” In Proceedings of ACM Sensys, November 2010. [24] C.-J. M. Liang, J. Liu, L. Luo, A. Terzis, and F. Zhao. 'Racnet: a high-fidelity data center sensing network,' In Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems (Sensys), November 2009. [25] X. Jiang, M. V. Ly, J. Taneja, P. Dutta, and D. Culler. 'Experiences with a high-fidelity wireless building energy auditing network,' In Proceedings of the 7th ACM conference on Embedded network sensor systems (Sensys), November 2009. [26] Dennis Cox, Emil Jovanov, and Aleksandar Milenkovic, 'Time Synchronization for ZigBee Networks,' In SSST, March 2005. [27] Philip Levis, 'TinyOS Programming,' June 2006. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/27963 | - |
| dc.description.abstract | 隨著人口高齡化，老人安養問題越來越受到注意，醫療看護人手不足的問題也越顯嚴重，為了有效的照顧老人的安全，我們在北護分院護理之家，佈建了一個無線感測網路系統。在資料傳輸可靠性與即時性的考量下，目前運作的資料傳遞機制是Magnetic Diffusion (MD)。為了減少封包的碰撞，提升資料傳輸可靠性，我們採用以跨層概念設計的Cross-Layer Diffusion (XD)，其特色為在MAC層利用TDMA和CSMA來避開碰撞。我們在testbed和台大北護分院實作XD並分析其表現，和原本的MD做比較。在實作方面，我們發現由於某些硬體上的限制，XD的表現並不像模擬那樣好。且TDMA需要時間同步，在高資料傳輸率的網路中精確的運行頗為困難，所以在北護分院運作的資料傳遞機制目前仍是MD較為適合。 | zh_TW |
| dc.description.abstract | As the elder population grows, elder care becomes a major concern in society and nursing staff shortage also becomes a problem. To solve the problems, we deploy a WSN in the elder care center of National Taiwan University Hospital Beihu Branch. Considering both the reliability and real-time data availability, for now, the data collection protocol in Beihu is Magnetic Diffusion (MD). In order to reduce collisions and achieve high delivery rate, we think about replacing MD with Cross-Layer Diffusion (XD), whose MAC is a hybrid of TDMA and CSMA to avoid collisions. In this work, we implement XD on a 24-node IEEE 802.15.4-based sensor network testbed and on Beihu, where the protocol uses, and analyze its performance and compare it with MD. We find that: (1) limited by the hardware, the performance of XD is not as good as the results in simulation. (2) MD is still more appropriate than XD in the real-time applications in Beihu. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-12T18:30:26Z (GMT). No. of bitstreams: 1 ntu-100-R98942064-1.pdf: 2272544 bytes, checksum: bd758d69c4c88d5c3da331dc8d437057 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | Contents
誌謝 i 摘要 ii Abstract iii Contents iv List of Figures vi List of Tables viii Chapter 1 Introduction 1 Chapter 2 Mechanism 5 2.1 Routing Mechanism 5 2.2 MAC Mechanism 8 Chapter 3 Prior Work 12 Chapter 4 Evaluation in Testbed 14 4.1 Environment 15 4.2 Setup 16 4.2.1 Implementation Detail 16 4.2.2 Parameter 21 4.2.3 Experiment Procedure 21 4.3 Static Case 22 4.3.1 Methodology 22 4.3.2 Result 23 4.3.3 Analysis 25 4.4 Mobile Case 32 4.4.1 Methodology 32 4.4.2 Result and Analysis 33 Chapter 5 Evaluation in Beihu 34 5.1 Environment 34 5.2 Static Case 35 5.2.1 Methodology 35 5.2.2 Result and Analysis 36 5.3 Mobile Case 40 5.3.1 Methodology 40 5.3.2 Result and Analysis 40 Chapter 6 Discussion 42 Chapter 7 Implementation Lesson 46 Chapter 8 Related Work 48 Chapter 9 Conclusion 52 Reference 53 | |
| dc.language.iso | en | |
| dc.subject | 無線感測網路 | zh_TW |
| dc.subject | 資料收集 | zh_TW |
| dc.subject | 跨層設計 | zh_TW |
| dc.subject | 實作 | zh_TW |
| dc.subject | Experimentation | en |
| dc.subject | Cross-Layer Design | en |
| dc.subject | Data Collection | en |
| dc.subject | Wireless Sensor Network | en |
| dc.title | 在臺大醫院無線感測網路中跨層設計之資料傳輸機制的實作與研究 | zh_TW |
| dc.title | Experimental Study of a Cross-Layer Designed Data Collection Mechanism for WSN in NTU Hospital | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 曾煜祺,許健平,陳伶志,藍崑展 | |
| dc.subject.keyword | 無線感測網路,資料收集,跨層設計,實作, | zh_TW |
| dc.subject.keyword | Wireless Sensor Network,Data Collection,Cross-Layer Design,Experimentation, | en |
| dc.relation.page | 58 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-08-08 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
| 顯示於系所單位： | 電信工程學研究所 | |
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