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Facing tremendous volume of semi-structured XML and non-structured free text, network information retrieval is one of the most research hotspots in dealing with these data more efficiently, precisely and uniformly. Many traditional IR methods ignore text semantics and their labeling result has usually only one level, lacking of context expression as well, therefore structure extraction from free text...
Device-to-Device (D2D) communications have been proposed recently to improve the spectral efficiency. In this paper, we consider physical-layer security in D2D communication as an underlay to cellular networks with an eavesdropper. Benefiting from the underlaid spectrum reuse, D2D users can contribute to the system secrecy capacity, while D2D users may interfere the cellular users and decrease their...
Device-to-Device (D2D) communications underlying cellular networks have been regarded as a promising way to satisfy the growing requirement for data traffic. However, the D2D pairs may bring significant interference to cellular networks when they share the channel with the cellular user equipments (UEs). In this paper, we consider the scenario in which the D2D pairs share the uplink channel with the...
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