A Study on Presence Distribution and Update of Mobile Instant Messaging Services
نویسندگان
چکیده
Mobile IM (Instant Messaging) users are more frequently online and offline than fixed users. It incurs large presence message traffic that significantly consumes the limited service resources. Some studies indicate that presence delayed update can effectively reduce the traffic. Firstly, we analyze presence update process and research presence distribution. Secondly, we use mathematical model to analyze presence delayed update. At last, we modify existing simulation methods to validate the model in respect of accuracy and effectiveness.
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تاریخ انتشار 2011