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      Emergency Communications Based on Throughput-Aware D2D Multicasting in 5G Public Safety Networks

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          Abstract

          Emergency communications need to meet the developing demand of equipment and the complex scenarios of network in public safety networks (PSNs). Heterogeneous Cloud Radio Access Network (H-CRAN), an important technology of the 5th generation wireless systems (5G), plays an important role in PSN. H-CRAN has the features of resource sharing and centralized allocation which can make up for resource shortage in emergency communications. Therefore, an emergency communications strategy based on Device-to-device (D2D) multicast is proposed to make PSN more flexible and rapid. Nearby users can communicate directly without a base station through D2D. This strategy may guarantee high speed data transmission and stable continuous real-time communications. It is divided into three steps. Firstly, according to the distance between users, the alternative cluster head is divided. Secondly, two kinds of cluster head user selection schemes are developed. One is based on terminal power and the other is based on the number of extended users. Last but not least, the Hungarian Algorithm based on throughput-aware is used to channel multiplexing. The numerical results show that the proposed scheme can effectively extend the coverage of PSN and optimize the utilization of resources.

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          Toward moving public safety networks

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            Mixed Mode Transmission and Resource Allocation for D2D Communication

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              Social-Aware Resource Allocation and Optimization for D2D Communication

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                Author and article information

                Journal
                Sensors (Basel)
                Sensors (Basel)
                sensors
                Sensors (Basel, Switzerland)
                MDPI
                1424-8220
                29 March 2020
                April 2020
                : 20
                : 7
                : 1901
                Affiliations
                State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; yinmengjun@ 123456bupt.edu.cn (M.Y.); wjli@ 123456bupt.edu.cn (W.L.); fenglei@ 123456bupt.edu.cn (L.F.); xsqiu@ 123456bupt.edu.cn (X.Q.)
                Author notes
                [* ]Correspondence: yupeng@ 123456bupt.edu.cn ; Tel.: +86-010-6119-8255
                Author information
                https://orcid.org/0000-0003-3494-5590
                https://orcid.org/0000-0002-0402-5390
                Article
                sensors-20-01901
                10.3390/s20071901
                7180947
                32235400
                d9284b39-fc61-4705-9d4d-396b754f431a
                © 2020 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 29 February 2020
                : 24 March 2020
                Categories
                Article

                Biomedical engineering
                public safety network,device-to-device,hungarian algorithm
                Biomedical engineering
                public safety network, device-to-device, hungarian algorithm

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