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This paper considers user level key performance indicators (KPI) evaluation for LTE network. Traditionally, cell level KPIs are obtained from the signalization data of soft/hard collection. However, the cell level KPIs could not be used to locate the communication problems within a cell. To solve this problem, we propose user level KPI evaluation methods. Two methods are proposed. User identification...
Android systems are widely used in mobile & wireless distributed systems. In the near future, Android is believed to dominate the mobile distributed environment. However, with the popularity of Android-based smartphones/tablets comes the rampancy of Android-based malware. In this paper, we propose a novel topological signature of Android apps based on the function call graphs (FCGs) extracted...
Human identification is very important for many applications. Most existing methods are based on ID cards or biometrical methods, such as fingerprint hard information or clothing color soft biometric trait. In this work, we propose a novel framework for human identification through recognizing human moving trajectory by two modalities, that is, the motion information from bird's eye view depth cameras...
This paper studies the multi-user downlink transmit beamforming algorithms for the broadband single-carrier distributed antenna network (SC-DAN). The distributed antennas will be used as antenna arrays by using transmit beamforming. In this work, the beamforming weight is designed in order to avoid the interference cancellation from the mobile terminals. Two methods are adopted. One is to use the...
A newly designed attitude sensing system is proposed to realize 3 Euler angles measurement of precision pointing hexapod. The attitude sensing system consists of biaxial inclinometer and laser displacement sensors. Due to the measurement of irrelevant degree of freedom (DOF) is avoided, the complexity and cost of the attitude sensing system is relatively low in comparison with ordinary 6 DOF measurement...
Delay-Tolerant/Disruption-Tolerant Networks (DTNs) have been proposed to cope with the challenges of communication in some extreme or special environments. Due to the uncertainty of node mobility, application traffic demand and other factors, it is difficult to provide performance guarantee for a DTN where all nodes may move arbitrarily. With controlled mobility, message ferries can be utilized to...
In recent years, researches have been done many works in the area of application of mobile computing technologies in construction to improve the low productivity of construction. This paper gives a brief review of the implanting of mobile computing in construction. It starts with the necessity of mobile computing in construction. It then reviews the researches on how people use mobile computing to...
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