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In this paper, we study the cluster dynamics during network evolution in human mobile network by analyzing the GPS trajectories of taxi collected in two different urban environment. We observe that the size distribution of small clusters exhibits persistence over time, and the behavior of large clusters becomes the key to distinguishing the network state at different time step during the evolution...
Because of user mobility, highly dynamic, error-prone wireless channels, the QoS control for mobile Peer-to-Peer (MP2P) streaming media has to face considerable challenges. Given to the advantages of policy management, we develop a policy-based QoS control (PBQC) architecture to provide QoS assurance dynamically and automatically in mobile network environment. And we also propose a MP2P streaming...
Mobile sensor networks comprise of mobile and static sensor nodes set up for the purpose of collaboratively performing tasks like sensing a phenomenon or monitoring a region. Sensor deployment is an important problem in mobile wireless sensor networks, which affects the performance and lifetime of the networks. This paper presents a distributed deployment algorithm for mobile sensors. Our algorithm...
Ad hoc network is one sort of multi-hop, self-organization and dynamically changing network. The Ad hoc On-Demand Distance Vector (AODV) protocol is an on-demand protocol specialized for mobile ad hoc network. Future network should have cognitive characters and the collection of elements that make up the network observes network conditions and then, using prior knowledge gained from previous interactions...
In uneven ubiquitous computing environments, there exists no one design paradigm, such as client/server, code on demand, remote evaluation or mobile agent, which can do well in all types of contexts. Thus, it is an important task to evaluate the performances of these paradigms in various environments in order to select and use the optimal paradigm in the specified contexts. This paper analyzes the...
Mobile Augmented Reality (MAR) is an emerging visual computing application for the mobile Internet device (MID). In one MAR usage model, the user points the handheld device to an object (like a wine bottle or a building) and the MID automatically recognizes and displays information regarding the object. Achieving this in software on the handheld requires significant compute processing for object recognition...
As the existence of diverse network technologies, QoS signaling is needed to guarantee the end-to-end QoS for users in complex network environment. Compared with the previous QoS signaling with resource reservation, NSIS (next steps in signaling) proposed by IETF is better in flexibility and scalability. This paper proposes a new mobility-aware scheme for QoS NSLP (NSIS signaling layer protocol) in...
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