MATLAB环境下的AODV VANET路由仿真实现

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资源摘要信息:"本项目为VANET-simulation-master,专注于在车辆自组织网络(VANET)环境中实现Ad Hoc按需距离向量路由协议(AODV)的MATLAB仿真。项目涵盖了使用MATLAB编程语言对AODV协议在VANET环境下的路由行为进行模拟的关键技术细节。 VANET(Vehicular Ad Hoc Network)即车辆自组织网络,是一种特殊的移动自组织网络(MANET),其主要特点是节点(车辆)具有高速移动、频繁变化的拓扑结构、不规则的网络分区等特点。VANET的这些特性使得传统的路由协议难以有效地应用于其环境中,因此需要对现有的路由协议进行改进或设计新的协议以适应VANET的特殊需求。 AODV(Ad Hoc On-Demand Distance Vector Routing)是一种按需路由协议,它结合了距离矢量路由和链路状态路由的特点,为移动自组织网络提供了有效的路径发现和维护机制。AODV的设计目标是在移动网络中寻找目的地的有效路径,并在通信双方之间建立路由,一旦路由不再被使用,就会自动断开。在VANET中,AODV协议需要进行优化,以便更好地处理车辆节点的高速移动性和网络的动态变化特性。 MATLAB是一种广泛使用的高性能数值计算和可视化软件,它集成了数值分析、矩阵运算、信号处理和图形显示等功能,并提供了大量内置函数,非常适合用于科学计算和仿真模拟。在本项目中,MATLAB被用于开发和测试改进后的AODV协议在VANET中的性能表现。 本项目中,可能涉及的关键知识点包括: 1. VANET网络架构和工作原理 2. AODV路由协议的工作机制及其实现 3. MATLAB编程及仿真技术 4. 针对VANET环境的AODV改进策略 5. 路由协议性能评估指标(如数据包传输率、端到端延迟、路由开销等) 6. VANET模拟中车辆运动模型的设计与实现 7. 网络协议在高动态环境下的稳定性和可靠性分析 通过该项目,可以深入理解VANET环境中路由协议的设计与实现,以及MATLAB在移动网络仿真中的应用。项目成果有助于优化VANET的网络性能,提高车载通信系统的效率和可靠性。此外,该仿真项目对于网络协议开发者和研究人员来说,是一个宝贵的实践平台,能够帮助他们在实际部署之前充分测试和验证新的网络协议。"
2018-11-09 上传
Originally reactive protocols were not design for the characteristic of highly mobility during route discovery. Due to dynamically modification to the VANET this changes very often due to breakdown which causing excessive broadcasting and flooding the entire network in order for new routes to be discovered. In additional, the initial of routing need some time and this latency can easily change everything. Due to these reasons, the typical reactive protocols, in their current format, do not totally appropriate for time critical applications such as cooperative collision avoidance (CCA). The Cooperative Collision Avoidance is an important class of safety applications in VANETs, which aims at offering earlier warning to drivers using vehicle-to-vehicle (V2V) communication [13]. Ad Hoc On Demand Distance Vector (AODV) is an reactive routing protocolwhich capable of both unicast and multicast. In AODV, like all reactive protocols,topology information is only transmitted by nodes on-demand. When source hassomething to send then initially it propagates RREQ message which is forwarded byintermediate node until destination is reached. A route reply message is unicastedback to the source if the receiver is either the node using the requested address, or ithas a valid route to the requested address. This repository provides a MATLAB simulaiton of VANET enviornment and rsults comparison in terms of throughput, packet drop ratio etc. More information can be reached at https://www.youtube.com/watch?v=2QeSYOgJo9s&t=32s