發(fā)布時(shí)間：2023-05-28 11:54

　　車載自組織網(wǎng)絡(luò)(VANET)作為智能交通系統(tǒng)的關(guān)鍵技術(shù)之一,可以為智能交通提供理想而有用的通信網(wǎng)絡(luò)技術(shù)。在確保交通安全,效率,商業(yè)和娛樂(lè)方面,它將發(fā)揮重要作用。由于VANET廣泛的應(yīng)用前景,研究VANET的網(wǎng)絡(luò)設(shè)計(jì)和實(shí)現(xiàn)對(duì)于交通信息化的發(fā)展具有深遠(yuǎn)的意義。網(wǎng)絡(luò)可靠性和連通性是VANET應(yīng)用的基礎(chǔ)和前提,它包括物理連通性和邏輯連通性,涉及物理鏈路連通性,MAC協(xié)議和路由協(xié)議的有效性等。本文主要研究VANET的物理鏈路連通性,為VANET的應(yīng)用和實(shí)現(xiàn)提供理論參考。為了分析VANET中的網(wǎng)絡(luò)連接性,主要工作和貢獻(xiàn)包括以下四個(gè)方面:研究了 VANET網(wǎng)絡(luò)的道路類型環(huán)境的仿真模型簡(jiǎn)化的方法,基于Dijkstra算法和計(jì)算給定路徑的可靠性容斥原理,提出了一種基于最高概率路徑計(jì)算可靠性的啟發(fā)式算法。在車輛到車輛(V2V)通信中,使用了短距離協(xié)議:ZigBee(802.15.4),WiFi(IEEE 802.11)和藍(lán)牙(802.15.1)及其數(shù)據(jù)速率,關(guān)聯(lián)時(shí)間和傳輸范圍的標(biāo)準(zhǔn),V2R通信使用了 IEEE 802.11b協(xié)議。算法考慮了道路環(huán)境的速度限制,三種類型的道路環(huán)境:高速路,城市路段和混合路段...

【文章頁(yè)數(shù)】：119 頁(yè)

【學(xué)位級(jí)別】：博士

【文章目錄】：
Abstract
摘要
1 Introduction
    1.1 Motivation
    1.2 Summary of Contribution
    1.3 Thesis Organization
2 Background
    2.1 Introduction
    2.2 Definitions
        2.2.1 Reliability
        2.2.2 Connectivity
    2.3 Communication Architecture of Vehicular Ad hoc Networks
        2.3.1 V2V Communication
        2.3.2 V2R Communication
        2.3.3 Hybrid Communication
    2.4 Applications of Vehicular Ad hoc Networks
        2.4.1 Safety-Applications
        2.4.2 Non-Safety Applications
    2.5 Features of Vehicular Ad hoc Networks
        2.5.1 IEEE 802.11 p
        2.5.2 Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA)
    2.6 Summary of the Protocols
        2.6.1 Bluetooth Protocols
        2.6.2 Wi-Fi Protocols
        2.6.3 ZigBee Protocols
    2.7 Network Connectivity in Vehicular Networks
        2.7.1 Inter-vehicle Spacing Distributions
        2.7.2 Factors Related to the Network Connectivity
        2.7.3 Vehicle Density and Transmission Range
        2.7.4 Network Mobility
        2.7.5 Roadside Unit (RSU) / Infrastructure
        2.7.6 Impact from Environments
    2.8 Summary
3 Reliability and Connectivity Analysis of Vehicular Ad hoc Networks under VariousProtocols
    3.1 Introduction
    3.2 Literature Review
    3.3 Problem Formulation
    3.4 Methodology
        3.4.1 Graph Representation
        3.4.2 Simulation Model
        3.4.3 Reliability Estimation
    3.5 Experimental Results and Analysis
    3.6 Summary
4 Vehicular Ad hoc Networks Connectivity Analysis of a Highway Toll Plaza
    4.1 Introduction
    4.2 Related Work
    4.3 Analytical Model of Connectivity
        4.3.1 System Model
        4.3.2 Connectivity probability
    4.4 Experimental Results and Analysis
        4.4.1 Adaptation of Proposed Model in a Realistic Scenario
        4.4.2 Impacts of Various Parameters on Connectivity
    4.5 Summary
5 Reliability and Connectivity Analysis of Vehicular Ad hoc Networks for a HighwayTunnel
    5.1 Introduction
    5.2 Related Work
    5.3 Safe Headway Based Reliability Model
        5.3.1 System Design
        5.3.2 Reliability Based on Safe Headway Distance
    5.4 Experimental Results and Analysis
        5.4.1 The Average Density of vehicles against Arrival Rate
        5.4.2 Reliability against Transmission Range
        5.4.3 Reliability against Average Density
        5.4.4 The Minimal Safe Headway Sh and its Effect on the NetworkReliability
    5.5 Summary
6 ST Reliability and Connectivity of Vehicular Ad hoc Networks for Different MobilityEnvironments
    6.1 Introduction
    6.2 Related Work
        6.2.1 Definitions
    6.3 The New Topological Formula and Rapid Algorithm
    6.4 Universal Speed Factor (USF)
    6.5 Connectivity of Vehicular Ad hoc Networks for Different Mobility Environments
        6.5.1 Evaluation of Vehicle Density
        6.5.2 Static Connectivity
        6.5.3 Mobile Case Connectivity
    6.6 Discussions and Obtained Results
        6.6.1 Static and Slow Mobility Case Analysis
        6.6.2 High Mobility Case Analysis
    6.7 Summary
7 Conclusion and Future Work
    7.1 Conclusion
    7.2 Future Work
References
Abstract of Innovation Points
Publications during PhD Period
Acknowledgement
Curriculum Vitae



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