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arXiv 1301.0965cs.NI
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利用网络科学改进VANET协议

Improving VANET Protocols via Network Science

Romeu Monteiro, Susana Sargento, Wantanee Viriyasitavat, Ozan K. Tonguz

摘要:

车载自组织网络是一个大型的、自组织的、分布式的网络,研究车载自组织网络的路由协议是一个重大的挑战。我们通过从网络科学的角度研究VANESCO来应对这一挑战,以开发在本地发挥作用但在全球范围内影响网络性能的解决方案。更具体地说,我们研究了不同大小和车辆密度的高速公路和城市VANELS的快照,并研究了节点度分布,聚类系数和平均最短路径长度等参数,以便更好地理解网络的结构,并将其与大型现实世界网络中常见的结构进行比较,如小世界和无标度网络。然后,我们将展示如何使用这些信息来改善现有的VANET协议。作为一个说明性的例子,它示出,通过添加新的机制,利用这些信息,城市车辆广播(UV-CAST)协议的开销可以大大减少,没有显着的性能下降。

英文摘要:

Developing routing protocols for Vehicular Ad Hoc Networks (VANETs) is a significant challenge in these large, self- organized and distributed networks. We address this challenge by studying VANETs from a network science perspective to develop solutions that act locally but influence the network performance globally. More specifically, we look at snapshots from highway and urban VANETs of different sizes and vehicle densities, and study parameters such as the node degree distribution, the clustering coefficient and the average shortest path length, in order to better understand the networks' structure and compare it to structures commonly found in large real world networks such as small-world and scale-free networks. We then show how to use this information to improve existing VANET protocols. As an illustrative example, it is shown that, by adding new mechanisms that make use of this information, the overhead of the urban vehicular broadcasting (UV-CAST) protocol can be reduced substantially with no significant performance degradation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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