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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 周俊廷(Chun-Ting Chou) | |
| dc.contributor.author | Chi-Han Chiang | en |
| dc.contributor.author | 江奇翰 | zh_TW |
| dc.date.accessioned | 2021-06-08T06:08:07Z | - |
| dc.date.copyright | 2011-08-22 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-08-22 | |
| dc.identifier.citation | [1] http://fjallfoss.fcc.gov/edocs_public/attachmatch/FCC-08-260A1.
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[18] Yu-Chee Tseng; Chih-Shun Hsu; Ten-Yueng Hsieh; , “Power-saving protocols for IEEE 802.11-based multi-hop ad hoc networks,” INFOCOM 2002. Twenty- First Annual Joint Conference of the IEEE Computer and Communications So- cieties. Proceedings. IEEE , vol.1, no., pp. 200- 209 vol.1, 2002 doi: 10.1109/IN- FCOM.2002.1019261 [19] J.-R. Jiang; Y.-C. Tseng; C.-S. Hsu; T.-H. Lai; , “Quorum-based asynchronous power-saving protocols for IEEE 802.11 ad hoc networks,” Mobile Networks and Applications, February 2005. [20] Dutta, P.; Culler, D.; Shenker, S.; , “Asynchronous Neighbor Discovery: Finding Needles of Connectivity in Haystacks of Time,” Information Processing in Sensor Networks, 2008. IPSN ’08. International Conference on , vol., no., pp.531-532, 22-24 April 2008 doi: 10.1109/IPSN.2008.60 [21] Kondareddy, Y.R.; Agrawal, P.; Sivalingam, K.; , “Cognitive Radio Network setup without a Common Control Channel,” Military Communications Con- ference, 2008. MILCOM 2008. 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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25296 | - |
| dc.description.abstract | 著眼於無線頻譜的不足，美國聯邦通訊委員會通過了容許無執照裝置能使用電視頻帶來增進頻譜的使用效率。這開創了一種全新的通訊方式，也就是被稱作動態頻譜存取的技術，而無執照裝置不可以干擾有執照許可的裝置。基本上，無執照裝置間的通訊會受到執照裝置無法預期的中段而斷斷續續。所以，透過相鄰裝置的探找與維護動態頻譜存取網路中的連線來建立通訊網路是難於傳統的無線網路。
在這篇論文中，我們著眼於相鄰裝置之間探找的問題並提出序列為基礎的演算法來保證無執照裝置間通訊連線能夠建立。然後，我們設計一種分散式的媒介存取控制通訊協定，來實現了以序列為基礎的相鄰裝置之間探找的問題和相應的通道存取。在這個通訊協定中，不需要仲裁者或其他的中央存取點。無執照裝置之間只要能存在一個共同的可用通道，便保證可以尋找到對方。我們將我們的通訊協定透過OPNET軟體來進行實作上的模擬並以不同的模擬環境來顯示我們的設計於通訊上的效能。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2021-06-08T06:08:07Z (GMT). No. of bitstreams: 1 ntu-100-R98942103-1.pdf: 5906633 bytes, checksum: e32865f2fc41307350558be5916e5f23 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v LIST OF FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi CHAPTER 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . 1 1.1 An Introduction to Dynamic Spectrum Access Networks . . . . . . . 1 1.1.1 Problems in The Conventional Multi-Channel MAC Network 2 1.1.2 New Challenges in The Multi-Channel DSA Network . . . . . 3 1.2 Related Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.1 Medium access control (MAC) protocols in conventional multi- channel networks . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.2 Multi-Channel DSA Protocols . . . . . . . . . . . . . . . . . 8 1.3 Thesis organization . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 CHAPTER 2 SYSTEM MODEL . . . . . . . . . . . . . . . . . . . . . 16 CHAPTER 3 THE PROPOSED SEQUENCE-BASED PROTOCOL IN DSA NETWORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.1 The sequence-based algorithm for DSA networks . . . . . . . . . . . 19 3.1.1 Design of hopping sequence . . . . . . . . . . . . . . . . . . . 19 3.1.2 Optimization on the proposed sequence-based algorithm for DSA networks . . . . . . . . . . . . . . . . . . . . . . . . . . 22 CHAPTER 4 NUMERICAL ANALYSIS . . . . . . . . . . . . . . . . 32 4.1 Time to Rendezvous . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.2 Channel Utilization . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 CHAPTER 5 DISTRIBUTED MAC PROTOCOL DESIGN BASED ON THE PROPOSED SEQUENCE ALGORITHM . . . . . . . . 39 5.1 Power Up: Generating the Hopping Sequence and Sensing the Pri- mary User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 5.2 Packet transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 5.2.1 The Initialization for Data Transmission . . . . . . . . . . . . 42 CHAPTER 6 SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . 47 6.1 Simulation parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 47 6.2 Simulation results and performance evaluation . . . . . . . . . . . . 48 6.2.1 Average Time to Rendezvous . . . . . . . . . . . . . . . . . . 48 6.2.2 Channel Utilization . . . . . . . . . . . . . . . . . . . . . . . 50 CHAPTER 7 CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . 53 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 | |
| dc.language.iso | en | |
| dc.subject | 連線建立 | zh_TW |
| dc.subject | 相鄰裝置之間探找 | zh_TW |
| dc.subject | 動態頻譜存取 | zh_TW |
| dc.subject | 認知無線電 | zh_TW |
| dc.subject | 多通道網路 | zh_TW |
| dc.subject | 媒介存取控制通訊協定 | zh_TW |
| dc.subject | dynamic spectrum access (DSA) | en |
| dc.subject | cognitive radio | en |
| dc.subject | MAC protocol | en |
| dc.subject | link establishment | en |
| dc.subject | neighbor discovery | en |
| dc.subject | multi-channel networks | en |
| dc.title | 在動態頻譜存取網路中以序列為基礎的多通道媒介存取 | zh_TW |
| dc.title | Sequence-Based Multi-Channel Medium Access in Dynamic Spectrum Access (DSA) Networks | 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 | 動態頻譜存取,認知無線電,相鄰裝置之間探找,連線建立,媒介存取控制通訊協定,多通道網路, | zh_TW |
| dc.subject.keyword | dynamic spectrum access (DSA),cognitive radio,neighbor discovery,link establishment,MAC protocol,multi-channel networks, | en |
| dc.relation.page | 57 | |
| 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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| ntu-100-1.pdf 未授權公開取用 | 5.77 MB | Adobe PDF |
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