基于网络可靠性和面向连接的VANETs研究

发布时间：2023-05-28 11:54

　　车载自组织网络(VANET)作为智能交通系统的关键技术之一,可以为智能交通提供理想而有用的通信网络技术。在确保交通安全,效率,商业和娱乐方面,它将发挥重要作用。由于VANET广泛的应用前景,研究VANET的网络设计和实现对于交通信息化的发展具有深远的意义。网络可靠性和连通性是VANET应用的基础和前提,它包括物理连通性和逻辑连通性,涉及物理链路连通性,MAC协议和路由协议的有效性等。本文主要研究VANET的物理链路连通性,为VANET的应用和实现提供理论参考。为了分析VANET中的网络连接性,主要工作和贡献包括以下四个方面:研究了 VANET网络的道路类型环境的仿真模型简化的方法,基于Dijkstra算法和计算给定路径的可靠性容斥原理,提出了一种基于最高概率路径计算可靠性的启发式算法。在车辆到车辆(V2V)通信中,使用了短距离协议:ZigBee(802.15.4),WiFi(IEEE 802.11)和蓝牙(802.15.1)及其数据速率,关联时间和传输范围的标准,V2R通信使用了 IEEE 802.11b协议。算法考虑了道路环境的速度限制,三种类型的道路环境:高速路,城市路段和混合路段...

【文章页数】：119 页

【学位级别】：博士

【文章目录】：
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



本文编号：3824542