Abstract: People’s demand for service in VANET has been increasing, however, the existing service discovery protocol for cable network and Ad Hoc cannot meet the requirements of VANET. Therefore, on the basis of an address based service resolution protocol, using the conception of service intensity, an efficient service discovery strategy, selecting the optimal next-hop node, is proposed in this paper. Through simulation, it can be justified that this strategy can decrease message cost in VANET.

Key words: vehicular Ad Hoc network, service discovery, service intensity

摘要： 人们对车载网络中服务的需求越来越多，而现有的有线网络和一般Ad Hoc网络的服务发现协议并不适用于车载网络。因此，在车载信息传播协议的基础上，利用服务强度的概念，提出了一种在城区车载网络中能高效选择最优下一跳节点的服务发现策略，成功实现低数据包开销下的车载网络服务发现。通过仿真比较，验证了其较好的可扩展性。

关键词: 车载自组网, 服务发现, 服务强度