基于移动自组网的服务发现体系结构设计

Novel Framework for Service Discovery in MANET

移动自组网络(MANET)是自治的无基础设施的网络,在此基础上进行的服务发现体系有别于传统的服务发现体系,需要从网络传输、服务注册以及服务发现等方面充分考虑移动无线网络和移动设备的特性。现有的基于有线网络或者单点自组网络协议的相关服务技术标准及协议用于MANET存在很大的局限性和不足。充分考虑移动自组网中设备的移动性和网络环境的不稳定性后,提出了一个基于分簇的体系架构设计,并在该体系架构中就服务传输协议、面向容错的分簇策略、非集中式的服务注册和服务发现机制等方面提出了针对性的设计方案。仿真结果显示,在移动自组网的特殊网络和设备环境下,这一新的体系架构和相关服务发现策略从服务匹配准确度、反馈时间等方面都优于传统方式的服务描述模式和服务发现机制。

The mobile ad hoc networks（MANET） are autonomous,infrastructureless network.Unlike the common service discovery used in wired applications,the service applications based on MANET have so many differences in data transmission,service registration and service discovery.All componented of service discovery of MANET need to consider the features of mobile devices and mobile environment.Considering the characters and requiremented,this paper presented a new framework for service discovery in MANET,which supports SOAP-over-UDP and adopts cluster architecture.And to make the service working smoothly in such framework,this paper prompted special service registration and discovery strategies.The experiment results demonstrate that the new framework with special service working strategies has great superiority both in response-time and efficiency in MANET environment.