Parrado Natalia, Donoso Yezid
Grupo de Comunicaciones y Tecnologías de Información (COMIT), Departamento de Ingeniería de Sistemas y Computación, Universidad de Los Andes, Carrera 1Este 19ª-40, Bogotá 111711, Colombia.
Sensors (Basel). 2015 Mar 31;15(4):7768-806. doi: 10.3390/s150407768.
The Internet of Things is a new paradigm in which objects in a specific context can be integrated into traditional communication networks to actively participate in solving a determined problem. The Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) technologies are specific cases of IoT and key enablers for Intelligent Transportation Systems (ITS). V2V and V2I have been widely used to solve different problems associated with transportation in cities, in which the most important is traffic congestion. A high percentage of congestion is usually presented by the inappropriate use of resources in vehicular infrastructure. In addition, the integration of traffic congestion in decision making for vehicular traffic is a challenge due to its high dynamic behavior. In this paper, an optimization model over the load balancing in the congestion percentage of the streets is formulated. Later, we explore a fully congestion-oriented route discovery mechanism and we make a proposal on the communication infrastructure that should support it based on V2I and V2V communication. The mechanism is also compared with a modified Dijkstra's approach that reacts at congestion states. Finally, we compare the results of the efficiency of the vehicle's trip with the efficiency in the use of the capacity of the vehicular network.
物联网是一种新的范式,在这种范式下,特定环境中的物体可以集成到传统通信网络中,积极参与解决特定问题。车对车(V2V)和车对基础设施(V2I)技术是物联网的具体实例,也是智能交通系统(ITS)的关键推动因素。V2V和V2I已被广泛用于解决与城市交通相关的不同问题,其中最重要的是交通拥堵。交通拥堵的很大一部分通常是由于车辆基础设施资源使用不当造成的。此外,由于交通拥堵具有高度动态性,将其纳入车辆交通决策中是一项挑战。本文提出了一种关于街道拥堵百分比负载均衡的优化模型。随后,我们探索了一种完全以拥堵为导向的路由发现机制,并基于V2I和V2V通信对应支持该机制的通信基础设施提出了建议。该机制还与一种在拥堵状态下做出反应的改进迪杰斯特拉方法进行了比较。最后,我们将车辆行程效率的结果与车辆网络容量使用效率进行了比较。