标题： 智能OLSRR路由协议优化用于VANETs 显示英文标题

标题： Intelligent OLSR Routing Protocol Optimization for VANETs

摘要： 近年来，无线技术的进步催生了车载自组织网络（VANETs）的出现。在这样的网络中，WiFi的有限覆盖范围以及节点的高移动性导致频繁的拓扑变化和网络分割。由于这些原因，并考虑到没有中央管理实体，通过网络路由数据包是一项具有挑战性的任务。因此，提供一种高效的路由策略对于VANETs的部署至关重要。本文通过定义一个优化问题，研究了优化链路状态路由（OLSR）的最佳参数设置，OLSR是一种广为人知的移动自组织网络路由协议。这样，本文研究了一系列典型的元启发式算法（粒子群优化、差分进化、遗传算法和模拟退火），以自动找到该路由协议的最佳配置。此外，定义了一组基于马拉加市的真实VANET场景，以准确评估我们在自动OLSR下的网络性能。在实验中，我们调整的OLSR配置比标准请求评论（RFC 3626）以及几位人类专家的表现更好，使其适用于VANET配置中的使用。 显示英文摘要

摘要： Recent advances in wireless technologies have given rise to the emergence of vehicular ad hoc networks (VANETs). In such networks, the limited coverage of WiFi and the high mobility of the nodes generate frequent topology changes and network fragmentations. For these reasons, and taking into account that there is no central manager entity, routing packets through the network is a challenging task. Therefore, offering an efficient routing strategy is crucial to the deployment of VANETs. This paper deals with the optimal parameter setting of the optimized link state routing (OLSR), which is a well-known mobile ad hoc network routing protocol, by defining an optimization problem. This way, a series of representative metaheuristic algorithms (particle swarm optimization, differential evolution, genetic algorithm, and simulated annealing) are studied in this paper to find automatically optimal configurations of this routing protocol. In addition, a set of realistic VANET scenarios (based in the city of M\'alaga) have been defined to accurately evaluate the performance of the network under our automatic OLSR. In the experiments, our tuned OLSR configurations result in better quality of service (QoS) than the standard request for comments (RFC 3626), as well as several human experts, making it amenable for utilization in VANET configurations.