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Title: | 混和式車輛隨意網路之跨層協力式路由協定 Cross-layer Cooperative Routing in Hybrid Vehicular Ad-Hoc Networks |
Authors: | Wei-Hui Chen 陳薇卉 |
Advisor: | 逄愛君(Ai-Chun Pang) |
Co-Advisor: | 胡碩誠(Shuo-Cheng Hu) |
Keyword: | 協力式路由,車輛隨意網路,混合式車輛隨意網路,最大化網路吞吐量,路側設施, Cooperative routing,VANET,Hybrid Vehicular Ad-Hoc Networks,maximize throughput,roadside units, |
Publication Year : | 2010 |
Degree: | 碩士 |
Abstract: | 近幾年來,混合式車輛隨意網路(Hybrid vehicular ad hoc networks)越來越受到關注及重視。車子間的資料傳輸可透過穩定性較強的路側設施幫忙傳送。然而,車子移動快速,移動變化快,使得車子間或車子跟路側設施間的連線易斷且不穩定。因此,我們提出混合式車輛隨意網路之跨層協力式路由協定來克服連線不穩定以增加整體網路吞吐量(throughput)。但由於透過不同的協力式中繼節點傳輸資料會達到不同的效能。因此,我們方法中有提出如何在混合式車輛隨意網路中選擇適合的中繼節點傳送資料可達到最大化網路吞吐量的效能。此外,我們更進一步去延長路由路徑的連線時間來減少重建路徑的次數。最後,我們以ns2結合MOVE來模擬提出的混合式車輛隨意網路之跨層協力式路由協定確實能達到好的效能。 Hybrid vehicular ad hoc networks (VANETs) are more and more considerable recently. We can transfer data through roadside units to lead more reliable path than wireless nodes. However, due to the high mobility, links between roadside units and wireless nodes are intermittent and unreliable. We propose cross-layer cooperative routing (CLCR) for hybrid VANETs to overcome the unreliability of the wireless channel and maximize the system throughput. Owing to different relay nodes may lead to different results. In our paper, we propose how to choose appropriate relay nodes in hybrid VANETs. Furthermore, we extend connection time of routing path to reduce the number of rediscovering destination. Simulation results based on network simulator 2 (ns2) and mobility model generator for vehicular networks (MOVE) show the proposed CLCR has good performance. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46556 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 資訊網路與多媒體研究所 |
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ntu-99-1.pdf Restricted Access | 839.45 kB | Adobe PDF |
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