查询结果:   郭美丽,甄华,李林峰.面向车载网的基于接收率的节点选择的多跳路由协议[J].计算机应用与软件,2015,32(5):319 - 322.
中文标题
面向车载网的基于接收率的节点选择的多跳路由协议
发表栏目
信息技术交流
摘要点击数
709
英文标题
RECEPTION RATE-BASED MULTI-HOP ROUTING PROTOCOL OF NODE SELECTION FOR VEHICULAR AD-HOC NETWORKS
作 者
郭美丽 甄华 李林峰 Guo Meili Zhen Hua Li Linfeng
作者单位
河南工业贸易职业学院机电工程系 河南 郑州 450000 河南工业贸易职业学院计算机系 河南 郑州 450000    
英文单位
Department of Mechanical and Electrical Engineering,Henan Industry and Trade Vocational College,Zhengzhou 450000,Henan,China Department of Computer Science,Henan Industry and Trade Vocational College,Zhengzhou 450000,Henan,China    
关键词
车载网 多跳路由 请示消息 接受率
Keywords
Vehicular ad hoc networks Multi-hop routing Request messages Reception rate
基金项目
作者资料
郭美丽,讲师,主研领域:电子信息与通信工程。甄华,讲师。 李林峰,副教授。 。
文章摘要
VANETs车载网是一种大型的复杂网络,具有节点高速移动、拓扑频繁变化等特性。多跳路由被广泛应用于VANETs,其通过广播请示消息REQ(Request)选取下一跳转发节点。然而,不断广播REQ降低了信道的可用性,增加了网络拥堵率。为此,提出基于RBNS(reception rate based node selection)路由方案。该RBNS在决策路由时无需广播REQ消息,源节点只需通过每个节点的reception rate信息,选择下一跳转发节点。同时,REQ仅向离目的节点近的节点方向传播,在节点的一跳通信范围仅传输一次,从而减少了路由跳数和REQ消息数量。仿真结果表明,RBNS在吞吐量、数据包丢失率和数据包碰撞率方面均得到有效的提升。
Abstract
Vehicular ad hoc networks (VANETs) are a large complex networks with the characteristics of high speed nodes moving and frequent topology changes. Multi-hop routing is widely used in VANETs, it selects the forwarding node of next hop by broadcasting the requests message (REQ). However the incessant REQ broadcast reduces channel’s availability and increases network congestion. Therefore, we propose the RBNS (reception rate-based node selection) routing protocol. The RBNS does not need to broadcast REQ messages when deciding the route, the source node selects the forwarding node of the next hop only requiring to go through the reception rate messages of every node. Meanwhile, REQ just spreads towards the direction of node close to the destination node and only transmits once within the communication range of one-hop of the node, so that the routing hop counts and the numbers of REQ are all reduced. Simulation results show that RBNS protocol gains effective improvement in terms of throughput, packet drop rate, and packet collision rate.
下载PDF全文