2017/11/27 by Nadisanka Rupasinghe, Yavuz Yapıcı, Rupasinghe, Nadisanka +5
Engineering · #Advanced Wireless Communication Technologies #FOS: Computer and information sciences #Information Theory (cs.IT) #Millimeter-Wave Propagation and Modeling #UAV Applications and Optimization
paper · pdf · doi:10.48550/arxiv.1711.10050
openalex publication_date 2017/11/27 · openalex created_date 2022/08/14 · openalex updated_date 2026/07/28
Unmanned aerial vehicles (UAVs) can be deployed as aerial base stations (BSs)\nfor rapid establishment of communication networks during temporary events and\nafter disasters. Since UAV-BSs are low power nodes, achieving high spectral and\nenergy efficiency are of paramount importance. In this paper, we introduce\nnon-orthogonal multiple access (NOMA) transmission for millimeter-wave (mmWave)\ndrones serving as flying BSs at a large stadium potentially with several\nhundreds or thousands of mobile users. In particular, we make use of\nmulti-antenna techniques specifically taking into consideration the physical\nconstraints of the antenna array, to generate directional beams. Multiple users\nare then served within the same beam employing NOMA transmission. If the UAV\nbeam can not cover entire region where users are distributed, we introduce beam\nscanning to maximize outage sum rates. The simulation results reveal that, with\nNOMA transmission the spectral efficiency of the UAV based communication can be\ngreatly enhanced compared to orthogonal multiple access (OMA) transmission.\nFurther, the analysis shows that there is an optimum transmit power value for\nNOMA beyond which outage sum rates do not improve further.\n