Abstract
E-mail, SMS (Short Message Service) and traditional mobile information push methods cannot meet the need of mobile digital campus systems due to no prompt, inefficiency, expensive and low acceptance rate. Mobile PubSub (publish-subscribe) system and mobile instant messaging system are two ways to implement mobile information push. The former mainly adopts HTTP polling mode to request updated information, but its efficiency is low. On the contrary, the latter has good instantaneity, but it lacks subscribe capability and cannot push information on demand. Also, most of mobile information push systems provide text message service only, and cannot support streaming media service. To solve these problems, in this paper, a novel system architecture is proposed by combining the PubSub protocol (PubSubHubbub), instant messaging protocol (XMPP, Extensible Messaging and Presence Protocol) and streaming media protocol (RTMP, Real-Time Messaging Protocol). Also a new mobile campus information push system based on this novel hybrid system architecture is designed and implemented. Our experimental results have shown that our push system can provide reliable streaming media service with high efficiency and instantaneity. Index Terms—Mobile Push, PubSubHubbub, XMPP, RTMP
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