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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 魏宏宇 | |
| dc.contributor.author | Che-Liang Liu | en |
| dc.contributor.author | 劉哲良 | zh_TW |
| dc.date.accessioned | 2021-06-15T02:32:34Z | - |
| dc.date.available | 2011-08-19 | |
| dc.date.copyright | 2009-08-19 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2009-08-14 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43913 | - |
| dc.description.abstract | Efficient content distribution is one of the emerging applications in vehicular networks. To provide scalable content distribution in vehicular networks, Chord peer-to-peer overlay could be applied. Most P2P protocols, including Chord, are designed for wired-line network, and might perform poorly in mobile networks. Mobile Chord (MChord) is proposed to enhance the P2P performance over vehicular ad hoc network (VANET). In addition, cross-layer design to improve MChord performance in VANET is also investigated. Extensive NS-2 simulations with vehicular mobility traces are conducted to evaluate the P2P overlay performance in VANET. Mobile Chord and its cross-layer design outperforms the original Chord in various aspects, including application layer forwarding steps, query response ratio, correct query response ratio, and application delay. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T02:32:34Z (GMT). No. of bitstreams: 1 ntu-98-R96921030-1.pdf: 1152761 bytes, checksum: ad8d27a756e0c01f23d9d84a7e07c94b (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | Abstract i
List of Figures iii List of Tables v 1 Introduction 1 2 RelatedWork 4 2.1 Characteristics of P2P Networks . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Chord and Application-Layer DHT . . . . . . . . . . . . . . . . . . . . . 5 2.3 P2P Protocol Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 Cross-layer design for P2P overlay . . . . . . . . . . . . . . . . . . . . . 8 3 Mobile Chord Protocol Design 10 3.1 Aggressive Table Update . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2 Overlay Table Broadcasting . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.3 Greedy forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.4 Passive bootstrapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4 Cross-layer enhancement for Mobile Chord 16 4.1 Cross-layer Knowledge Harvesting . . . . . . . . . . . . . . . . . . . . . 16 4.2 Knowledge Piggyback In Overlay Signaling . . . . . . . . . . . . . . . . 18 5 Performance evaluation 20 5.1 Mobility Model Characteristics . . . . . . . . . . . . . . . . . . . . . . . 25 5.2 Static Grid Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 5.3 Bootstrapping Performance . . . . . . . . . . . . . . . . . . . . . . . . . 31 5.4 Traffic Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5.5 Vehicular Network P2P Performance . . . . . . . . . . . . . . . . . . . 34 5.6 Overlay Table Broadcasting Interval . . . . . . . . . . . . . . . . . . . . 43 5.7 Comparative Performance in Different Mobility Schemes . . . . . . . . . 44 5.8 Overlay Table Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 6 Conclusion 49 Bibliography 50 | |
| dc.language.iso | en | |
| dc.subject | 車用無線網路 | zh_TW |
| dc.subject | 同儕網路 | zh_TW |
| dc.subject | vehicular ad hoc network | en |
| dc.subject | peer to peer network | en |
| dc.title | Mobile Chord: 一個車用無線隨意網路的高效率同儕網路訊號系統 | zh_TW |
| dc.title | Mobile Chord: An Efficient P2P Signaling Application over Vehicular Ad Hoc Networks | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 97-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 黃寶儀,林宗男,鄭振牟 | |
| dc.subject.keyword | 同儕網路,車用無線網路, | zh_TW |
| dc.subject.keyword | peer to peer network,vehicular ad hoc network, | en |
| dc.relation.page | 54 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2009-08-14 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
| 顯示於系所單位： | 電機工程學系 | |
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