基于命名数据网络的车载自组织网络数据分发机制

发布时间：2018-01-25 06:01

本文关键词： 车载自组织网络路段信息路由数据分发命名数据网络　出处：《计算机应用》2017年01期 　论文类型：期刊论文

【摘要】：车载自组织网络(VANET)是一个高度动态的通信网络,设计稳定的数据分发机制是一个很大的挑战。将关注数据内容的命名数据网络(NDN)应用于车载自组织网络中,能有效缓解网络拓扑频繁变化所带来的问题。首先,优化命名数据网络的消息类型和数据结构;然后,结合车载自组织网络的特性,提出根据路段建立路由的方式,减少数据分发的开销。仿真实验结果表明,所提出的基于命名数据网络的车载自组织网络数据分发机制与应用于车载自组织网络数据分发的传统命名数据网络算法对比,数据转发平均命中率(AHR)提高大约53个百分点,平均转发次数减少大约0.4。因此提出的基于命名数据网络的车联网数据分发机制,采用新的路由方式,能够提高数据分发效率。
[Abstract]:Vehicle Ad Hoc Network (VANET) is a highly dynamic communication network. It is a great challenge to design a stable data distribution mechanism. Named data Network (NDN), which focuses on data content, is applied to vehicular ad hoc networks. It can effectively alleviate the problems caused by frequent changes in network topology. Firstly, the message type and data structure of named data network are optimized. Then, according to the characteristics of the vehicle Ad Hoc network, a routing method is proposed to reduce the overhead of data distribution. The simulation results show that. The proposed data distribution mechanism based on the named data network is compared with the traditional named data network algorithm which is applied to the vehicle ad hoc network data distribution. The average hit rate of data forwarding (AHR) is increased by about 53 percentage points, and the average number of forwarding is reduced by about 0.4. Therefore, a data distribution mechanism based on named data network for vehicle networking is proposed. The efficiency of data distribution can be improved by adopting a new routing method.
【作者单位】：中山大学数据科学与计算机学院;国家电网莱芜供电公司;
【基金】：国家自然科学基金资助项目(61379157) 广东省科技计划项目(2015B010111001,2015A010103007) 广州市科技计划项目(201510010068)~~
【分类号】：TN929.5;U495
【正文快照】： 0引言车载自组织网络(Vehicular Ad Hoc Network,VANET)[1],采用IEEE 802.11p[2]标准,实现车辆与车辆(Vehicle-to-Vehicle,V2V)或者车辆与路边单元之间(Vehicleto-Infrastructure,V2I)的通信[3]。车载自组织网络继承了移动无线自组织网络的特性:分布式操作、宽带有限、节点

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