Design And Implementation Of Instant Messaging System On Cdma Network

At present, the research and development of mobile Instant Messaging system in the world is now spreading like a raging fire. There have been more than 50 mobile data communication network operators in the world, each developed country as well as telecommunication operators and manufacturers engaged in the development of mobile data communication service.The modernized and collectivized construction requires the Instant Messaging of word, video and sound provided by Instant Messaging plarform. In the meantime, the combination of Instant Messaging techniques together with what has been in existence will further promote the modernization of the group.With high speed development of mobile Instant Messaging service and the Unicom CDMA network as a golden opportunity, and with the wide understanding of group Instant Messaging development and application condition, especially the CDMA safety technique, the thesis illustrates "design and realization of the Instant Messaging system besed on CDMA network". The thesis raises a Instant Messaging system framework design based on the CDMA network, and detailly describes function module and its designing idea, taking advantage of network communication technique, database technique, multithreading technique etc, thus realizing functions of text communication, document deliver, user grouping and user and log management. This Instant Messaging system achieves very good effect through practical application.The system's cost is small, constructing investment small, maintenance, circulate expenses low. Setting up of the network is easy, and the system will surely get an extensive application in the group.