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In this paper, device-to-device (D2D) communications are investigated in the framework of LTE public safety networks. A clustering approach to enhance the performance of public safety D2D networks is proposed. In each cluster, a single device, the cluster head, is selected to communicate with the base station. It would then relay the information to/from the other cluster members. The performance of...
Device-to-Device communications are studied in the framework of LTE public safety networks. We propose a model where devices cooperate on the short range by forming coalitions for the purpose of energy efficiency. In each coalition, a device is selected to communicate with the base station on the long range. Coalition formation is investigated both for the uplink and downlink directions. Simulation...
Distributed base stations are studied in the framework of LTE public safety networks. In the proposed model, users are connected to remote radio heads deployed throughout the cell and connected to a central base station. In this paper, resource allocation for the purpose of real-time video transmission, in the uplink and downlink, is investigated, and the performance of several distributed base station...
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