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Current surveillance system in some specific places like bank, hospital or train station are not efficient enough for city manager or policeman. Huge amount of manpower are needed to make full use of these surveillance data in crime research. In this paper, a novel highly automated surveillance system are proposed. The system would get the identification information and human position indirectly by...
This paper introduces an implementation of The Extensible Messaging and Presence Protocol (XMPP) based on cloud service message push technology through an instance which explains the implementation procedure. Specifically, Android client establishes XMPP connection and registration through cloud service, the cloud server could actively push messages to user's Android devices based on their demands,...
In this investigation, we propose and investigate the standard WiMAX access in high speed railway (HSR) using radio over fiber (RoF) link. We also discuss the theory of mobile WiMAX at a target speed of 300 km/hr in simulation. We also analyze the effect of the Doppler frequency shift over HSR. The effective transmission fiber length in the WiMAX-RoF system was limited due to the time-division-duplex...
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