Bandwidth aggregation over VANET using the geographic member-centric routing protocol (GMR)
Bandwidth aggregation over VANET using the geographic member-centric routing protocol (GMR)
复制标题
使用以地理成员为中心的路由协议 (GMR) 通过 VANET 进行带宽聚合
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Kuan
中科院分区：
文献类型：
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作者：
Chung;Tzu;Kuan
在本文中，我们提出了一种新的路由协议，称为地理中心路由（GMR）的VANET，由一个车队的车辆，具有相同的起点，行驶路线和目的地点，在高速公路环境中行驶。GMR的目标是将3G/3.5G带宽从一些称为助手的车辆聚合到称为助手的车辆，即它属于多源单目的地传输，在车队中进行协作视频流服务。为了在队列场景中提供更好的协作视频流服务，我们（1）利用队列移动性的特征，其中队列成员试图尽可能靠近彼此驾驶，以及（2）提出了一种以成员为中心的方案，该方案通过更稳定的路由数据包队列成员之间的链接。本文还引入了流合并的概念，通过流合并，第k跳节点将数据包转发给第k-1跳中的1个或多个合并节点，以减少多个流之间的干扰和数据包碰撞。仿真结果表明，GMR采用以成员为中心的策略和流合并策略，有效地提高了分组投递率和吞吐量。实验结果表明，在VANET上，以成员为中心的路由协议更适合于3G/3. 5G的带宽聚合。
In this paper, we proposed a novel routing protocol called Geographic Member-Centric Routing (GMR) over a VANET that consists of a platoon of vehicles, which have the same starting point, driving route, and destination point, driving in the highway environment. The goal of GMR is to aggregate 3G/3.5G bandwidth from some vehicles called Helpers to a vehicle called Requester, i.e., it belongs to multiple-source single-destination transmission, to have cooperative video streaming service in the platoon of vehicles. For providing a better cooperative video streaming service in the platoon scenario, we (1) utilized the characteristic of platoon mobility, in which platoon members try to drive with each other as close as possible and (2) proposed a member-centric scheme that routes packets through more stable links between platoon members. We also introduced a concept of flow-merging, using which k-hop nodes would forward packets to 1 or more merge-nodes in (k-1)-hop, to reduce interference and packet collision between multiple flows. According to the simulation results, GMR effectively improves the packet delivery ratio and throughput using our proposed member-centric scheme and flow merging scheme. It also shows that the proposed member-centric routing protocol is more suitable than others for 3G/3.5G bandwidth aggregation in the platoon scenario over VANET.