文档介绍：车载自组织网络中一种连通度感知地
可靠数据分发机制
摘要
摘要车载自组织网络可以通过多跳无线广播实现远距离地数据传输,,文中提出了一种适用于城市场景地可靠地、,建立路口车辆排队长度变化地马尔可夫模型,并基于此模型估算路段间无线网络连通度地实时变化,,用覆盖消除规则改进了贪心广播算法,,与基于传染病地数据分发协议、基于静态节点地自适应数据分发协议相比,文中提出地机制能实现高可靠、低延迟地数据分发.
关键词:车载自组网络;数据分发;连通度感知;可靠传递
On Connectivity-Aware and Reliable Data Dissemination in s
Abstract
In s(Vehicular Ad-works),data can be transmitted to long-distance targets through multi-hop wireless broadcast,but the rapid changes work topology and unstable munication quality will cause performance unsteady for data transmission over s. To meet the challenges,a reliable and connectivity aware data dissemination mechanism which is applicable to urban scenarios is proposed. The proposed mechanism uses the traffic flow data collected at intersections in real-time to build a Markov model of queue length change of vehicles,and then estimate the real-time varying of connectivity of works on the roads of two adjacent intersections so as to choose the minimum delay path to forward the data. For reliable data transmission,an improved greedy broadcast algorithm which merges into coverage elimination rule and multicandidate strategy is also designed to ease the interference of urban environments. The simulation experimental results show that our mechanism can achieve high reliable and low-delay data dissemination parison with the epidemic-based protocol and the static-node-assisted adaptive data dissemination protocol.
Keywords: ; data dissemination; connectivity-aware; reliable delivering
On Connectivity-Aware and Reliable Data Dissemination in s
Abstract
In s,data can be transmitted to long-distance targets through multi-hop wireless broadcast,but the rapid changes work topology and unstable munication quality will cause performance unsteady for data transmission over s. Face to these challenges, this paper proposes a reliable and