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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 周俊廷(Chun-Ting Chou) | |
dc.contributor.author | Wei-Kai Chuang | en |
dc.contributor.author | 莊惟凱 | zh_TW |
dc.date.accessioned | 2021-06-08T07:09:09Z | - |
dc.date.copyright | 2011-08-23 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-22 | |
dc.identifier.citation | [1] Zigbee Alliance http://www.caba.org/standard/zigbee.html.
[2] LAN-MAN Standards Committee of the IEEE Computer Society, Wireless LAN medium access control(MAC) and physical layer(PHY) speci cation, IEEE, New York, NT, USA, IEEE Std 802.11-1997 edition, 1997. [3] LAN-MAN Standards Committee of the IEEE Computer Society, Wireless Medium Access Control(MAC) and Physical Layer(PHY) Speci cation for Low-Rate Wireless Personal Area Networks(LR-WPANs), IEEE, 2003. [4] C.E.Perkins and E.M.Royer, Ad Hoc On Demand Distance Vector Routing [5] Sinem Coleri Ergen. ZigBee/IEEE 802.15.4 Summary, September 10, 2004. [6] Feng Wang, Dou Li and Yuping Zhao. Analysis and Compare of Slotted and Un-slotted CSMA in IEEE 802.15.4. In Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on, pages 1-5, Sept. 2009. [7] Jin Soo Park, Tae Ok Kim, Kyung Jae Kim and Bong Dae Choi. Performance Analysis of IEEE 802.15.4 Non-Beacon Mode Where Downlink Data Packets Are Transmitted by Piggyback Method. In Communications Workshops, 2009. ICC Workshops 2009. IEEE International Conference on, pages 1-6, June. 2009. [8] Chiara Buratti and Roberto Verdone. Performance Analysis of IEEE 802.15.4 Non Beacon-Enabled Mode. In Vehicular Technology, IEEE Transactions on,pages 3480-3493, Sept. 2009. [9] Iyappan Ramachandran, Arindam K. Das and Sumit Roy. Analysis of the Contention Access Period of IEEE 802.15.4 MAC. In ACM Transactions on Sensor Networks, Volume 3 Issue 1, March. 2007. [10] Piyush Gupta and P. R. Kumar. The Capacity of Wireless Networks. In Information Theory, IEEE Transactions on, pages 388-404, Mar. 2000. [11] Jinyang Li, Charles Blake, Douglas S. J. De Couto, Hu Imm Lee and Robert Morris. Capacity of Ad Hoc Wireless Networks. In MobiCom '01 Proceedings of the 7th annual international conference on Mobile computing and networking, pages 61-69, 2001. [12] Su Yi, Yong Pei and Shivkumar Kalyanaraman. On the Capacity Improvement of Ad Hoc Wireless Networks Using Directional Antennas. In MobiHoc '03 Proceedings of the 4th ACM international symposium on Mobile ad hoc networking and computing, pages 108-116, 2003. [13] The OPNET Modeler (http://www.opnet.com). | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/26407 | - |
dc.description.abstract | ZigBee及IEEE 802.15.4提供無線個人化網路一套從網路層到實體層完整的通訊協定,其特性為低功率消耗及低傳輸速率,特別適用於電池裝置以及無線感知網路。協定中定義了基礎架構以及非基礎架構兩種拓樸分別支援不同種應用。另外依照訊框的形式又定義出兩種架構:信標支援、非信標支援。其中的差異在於各裝置之間是否有時間上的同步。
在此論文中,我們建立了一套數學分析模型針對基礎架構下使用非信標支援的訊框。我們引入了通道可用評估臨限值(Clear Channel Assessment Threshold)到我們的數學模型中。現存的研究並沒有針對此參數的影響作出分析。最終我們可以得知我們分析的結果與模擬的結果相當符合。於本論文的後段,我們更進一步討論一個特殊的案例並將我們的模型導入其中。 接下來,多跳網路的容量分析也被納入本篇論文。我們建立了模型以分析最大的空間利用率。由此最大空間利用率,我們可以進而推算出最大的多跳網路容量。在本論文中,我們使用行動容量來做為衡量標準。接著我們使用OPNET模擬飽和多跳ZigBee網路作為參考,並將其結果與分析結果相比較。可以得知,我們所提出的行動容量上限值為一相對逼近之上限。 | zh_TW |
dc.description.abstract | ZigBee and IEEE 802.15.4 provide a low power solution from the network layer to the physical layer for battery-equipped devices with relaxed requirement on data rate in wireless personal area networks (WPANs). The solution provides both infrastructure and infrastructure-free network topologies, namely the star and mesh. Beacon-enabled mode and non-beacon-enabled mode are also de ned to support synchronous and asynchronous transmissions.
In this thesis, we focus on building a mathematical model for the star topology with devices transmitting data to the coordinator in the non-beacon-enabled mode. We include a clear channel assessment (CCA) threshold into the analysis which is new from other existing researches. The proposed analytical model captures the behaviors of the system precisely, and the analysis matches well with our simulations. We further discuss a speci c scenario and implement our model as a case study. Moreover, the capacity analysis of a multi-hop network is also conducted in this thesis. We build a model to obtain the maximum spatial reusability so as to achieve the performance upper bound of the network. Transport capacity is used as an metric to evaluate the performance of the network. We then implement a saturated ZigBee mesh network by OPNET Modeler as an example to examine the capacity upper bound we proposed. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T07:09:09Z (GMT). No. of bitstreams: 1 ntu-100-R98942099-1.pdf: 5541664 bytes, checksum: 7a7099d191df651825e1cb57c2a9f062 (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | TABLE OF CONTENTS
ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v LIST OF FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi CHAPTER 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . 1 1.1 An Introduction to Zigbee and IEEE 802.15.4 . . . . 1 1.2 The objectives . . . . . . . . . . . . . . . . . . 4 1.3 Related work . . . . . . . . . . . . . . . . . . . 5 1.3.1 Non-beacon enabled IEEE 802.15.4 . . . . . . . . 5 1.3.2 Multi-hop networks evaluation . . . . . . . . . . 5 1.4 The organization of this thesis . . . . . . . . . . 7 CHAPTER 2 SYSTEM MODEL . . . . . . . . . . .... . . . . 8 2.1 IEEE 802.15.4 PHY-Layer Considerations . . . . . . 8 2.1.1 Receiver Energy Detection (ED) . . . . . . . . . 9 2.1.2 Link Quality Indication (LQI) . . . .. . . . . . 10 2.1.3 Clear Channel Assessment (CCA) . . . . . . . . . 10 2.2 IEEE 802.15.4 MAC-Layer Considerations . . . . . . 11 2.2.1 Superframe Structure . . . . . . . . . . . . . . 11 2.2.2 CSMA/CA Mechanism . . . . . . . . . . . . . . . 13 2.2.3 Data Transfer Model . . . . . . . . . .. . . . . 14 2.3 ZigBee Routing Layer . . . . . . . . . . . . . . . 17 2.3.1 AODV: Ad Hoc On Demand Distance Vector . . . . . 17 CHAPTER 3 ANALYSIS OF WIRELESS PERSONAL AREA NETWORK IEEE 802.15.4 . . . . . . . . . . . . . . . . . . . . . . . 19 3.1 Problem statement . .. . . . . . . . . . . . . . . 19 3.2 Analysis of CCA Threshold=0 in the Non-beacon-enabled Mode IEEE 802.15.4 Network . . . . . . . . . . . . . . 20 3.3 Analysis of Arbitrary CCA Threshold in the Non-beacon-enabled Mode IEEE 802.15.4 Network . . . . . . . . . . 24 CHAPTER 4 TRANSPORT CAPACITY OF MULTI-HOP NET- WORKS . . . . . . . . . . . . . . . . . . . . . . . .. 31 4.1 Spatial Reusability Based On Capture Effect .. . . 31 4.1.1 Capture Eect Model . . . . . . . . . . . . . . . 31 4.1.2 Related work . . . . . . . . . . . . . . . . . . 32 4.1.3 Proposed upper bound . . . . . . . . . . . . . . 33 4.2 Spatial Reusability Based On Channel Clear Assessment Model . . . . . . . . . . . . . . . . . . . . . . . . 35 4.3 Spatial Reusability when Consider Both Capture Eect and CCA . . . . . . . . . . . . . . . . . . . . . . . . . 36 4.4 The Capacity Analysis of Arbitrary Networks . . . .38 CHAPTER 5 SIMULATION RESULTS . . . . . . . . . . . . . 41 5.1 Simulation of Non-beacon-enabled IEEE 802.15.4 in Star Topology . . . . . . . . . . . . . . . . . . . . . . . 41 5.2 A Case Study: ZigBee Tags for Data Upload . . . . 44 5.3 Transport Capacity Upper Bound of a Mesh ZigBee Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 CHAPTER 6 CONCLUSIONS . . . . . . . . . . . . . . . .. 52 6.1 Conclusions . . . . . . . . . . . . . . . . . . . 52 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 | |
dc.language.iso | en | |
dc.title | 非信標模式之IEEE 802.15.4效能分析 | zh_TW |
dc.title | Performance Analysis on Non-beacon-enabled Mode IEEE 802.15.4 | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 廖婉君(Wanjiun Liao),謝宏昀(Hung-Yun Hsieh),馮輝文(Huei-Wen Ferng) | |
dc.subject.keyword | 非信標 IEEE 802.15.4,多跳網路容量分析,通道可用評估,行動容量分析, | zh_TW |
dc.subject.keyword | non-beacon IEEE 802.15.4 analysis,un-slotted IEEE 802.15.4,multi-hop networks capacity,ZigBee analysis,transport capacity,CCA threshold, | en |
dc.relation.page | 54 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2011-08-22 | |
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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