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In all the researches in wireless sensor networks, cameras are increasingly utilized for their surveillance capabilities. In this paper, we elaborately discuss about the problem of Full-View Barrier Coverage with Rotatable Camera Sensors (FBR), including weakly and strongly connected versions. FBR is proven to be NP-hard in this paper by reducing Group Steiner Tree problem to it. Our goal is to reduce...
With the development of online shopping and the demand for automated packaging systems, we propose an Internet of Things (IoT)-based automated e-fulfillment packaging system and a 3-D adaptive particle swarm optimization (PSO)-based packing algorithm. The proposed system leverages the IoT to connect the data collection and conversion layer, the packaging management layer, the decision-making layer,...
The mixture of users with different carrier aggregation (CA) capabilities presents new challenges to optimize the performance of the next generation wireless networks. This paper focuses on the joint resources allocation for OFDMA-based multi-carrier system. Distinguished from many existing methods, our approach deploys the joint dynamic spectrum resources assignment and adaptive power allocation...
This study presents a dynamic deformation retrieval method for differential synthetic aperture radar interferometry (DInSAR) processing. Detailed nonlinear displacement parameters are modeled and estimated for capturing the developing trends of ground movement both in time and space. In order to reduce the system disturbance errors such as atmospheres and platform deviations, the singular value decomposition...
In this paper, we concentrated on resource allocation for heterogeneous traffic in OFDM wireless networks. We considered three types of traffic, i.e. hard QoS, soft QoS and best effort (BE), the characteristics of which can be described by three different utility functions. We proposed a utility-based cross-layer resource scheduling model, which performs combinational-optimization adaptive resources...
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