Role-based multicast in highly mobile but sparsely connected ad hoc networks
Role-based multicast in highly mobile but sparsely connected ad hoc networks
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DOI：
10.1109/mobhoc.2000.869212
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发表时间：
2000-11
期刊：
影响因子：
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通讯作者：
L. Briesemeister;G. Hommel
中科院分区：
文献类型：
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作者：
L. Briesemeister;G. Hommel
我们提出了一种在自组织网络中的高度移动主机之间多播消息的方法。我们提出了基于角色的多播的新定义，以满足车辆间通信的特殊需求：多播组不是通过显式标识，而是通过位置、速度、行驶方向和时间隐式定义。例如，我们研究向附近车辆报告的一起道路事故。我们重点关注系统的稀疏部署，这很可能在系统引入市场后不久发生。在这种状态下，所产生的自组织网络往往会断开。我们定制所提出的算法来克服网络碎片的问题。通过测量在各种条件下及时通知多播区域内的车辆数量，模拟向我们展示了所提出协议的质量。
We present an approach to multicasting messages among highly mobile hosts in ad hoc networks. We suggest a new definition of a role-based multicast that suits the special needs of inter-vehicle communication: rather than by explicit identification, a multicast group is defined implicitly by location, speed, driving direction and time. As an example, we study a road accident that is reported to nearby vehicles. We focus on sparse deployment of the system which is likely to occur soon after the system is introduced to the market. In this state, the resulting ad hoc network tends to be disconnected. We tailor the proposed algorithm to overcome this problem of network fragmentation. Simulations show us the quality of the proposed protocol by measuring how many vehicles inside a multicast area are informed in time under various conditions.