Research And Implementation Of Prototype System Of Mobile Information Dissemination Middleware

Publish/subscribe (or pub/sub) is an asynchronous messaging paradigm, decoupling both from time and location, which allows greater scalability and more dynamic network topology; the popularity of mobile networks and the maturity of technology are making the mobile networks developing rapidly. The research and development of mobile applications are becoming hot spots. This paper is about aspects of information dispatch technology used in mobile networks with the titile research and implementation of prototype system of mobile information dissemination middleware.This paper focuses on dissemination of information on mobile networks and on developing prototype system according the DDS specification with the target of making message move more efficiently. Publishers can publish data using universal interfaces, and the agent layer is responsible for sending and receiving message, and subscribers can read their massage through universal interfaces.The primary innovations of this paper include:According to the characteristics of mobile networks, QoS research has been done to make sure the usage of resources more efficiently. Upon the basis of OMG DDS, this paper proposes five effective patterns and designs appropriate interfaces and parameters of the system, in order to make strong control of the system.Prototype system design and implementation, include:demand analyze, according to the UML specification; design of system networks, building the three layer architecture; design modules and interfaces of the system; web develop using of.net framework; data model design.