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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...
Heterogeneous networks have become an important model to represent complex network. However, many existing community detection methods for dynamic network are hardly applied in heterogeneous networks. In this paper, we present a multi-view learning based algorithm for dynamic heterogeneous networks, which treats network individually, combines heterogeneous information and improves the quality. Compared...
Future wireless communications should be designed efficiently to support multi-mode operations for different types of applications, such as machine-to-machine, video streaming, web browsing and voice. In the physical layer multi-mode operation could include the coexistence of single carrier and multicarrier modulations. To reduce overall complexity and power consumption, it is highly desirable to...
In this paper, we compare three filter bank multicarrier (FBMC) techniques, i.e., Orthogonal Frequency Division Multiplexing (OFDM), OFDM-Offset Quadrature Amplitude Modulation (OFDM-OQAM) and wavelet packet modulation (WPM), based on multiple criteria, including bandwidth efficiency, computational complexity, latency, out-of-band emission, peak-to-average power ratio, and sensitivity to timing and...
Network diameter is one of the important parameters of a network, until now, however, there has not been a perfect algorithm which has a lower time complexity than O(n2) to deal with this problem. As increasingly expanding of network scale and increasing number of nodes and edges, it would spend a lot of time that using Floyd algorithm whose time complexity is defined O(n3) or Breadth-first Search(BFS)...
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