基于路由和位置感知的Ad Hoc网络服务发现

Service Discovery Based on Routing and Location-aware in Ad Hoc Networks

服务发现能力是有效应用Ad Hoc网络的基本要求.在分析现有的Ad Hoc网络服务发现方法基础上,提出一种基于路由和位置感知的Ad Hoc网络服务发现方法.该方法基于AODV路由协议,将服务发现和路由发现合并为一个过程,在路由发现的同时进行服务发现,能提高服务发现效率,降低消息开销;又由于在服务回复消息中引入了经纬度位置信息,可以帮助请求节点感知发现距离自己最近的服务提供者,达到快速救援目的.实验结果表明,与同类的服务发现方法相比,该方法在时延、消息开销方面具有较大的优越性.

The ability to discovery services is the basic requirement for effective utilization of Ad Hoc networks. Following the analysis of existing service discovery method for Ad Hoc networks, this paper proposes a service discovery method based on routing and location-aware in Ad Hoc networks. Based on the AODV routing protocol, the method can improve the efficiency of service discovery and reduce the cost by putting service discovery and routing discovery into a process. The service request nodes can perceive the nearest service provider to achieve rapid rescue by introducing the latitude and longitude location information in the service reply message. The performance of simulations shows that it is better than those similar service discovery method proposed in delay and cost.