D’Andrea, CarmenGarcía Rodríguez, AdriánGeraci, GiovanniGalati Giordano, LorenzoBuzzi, Stefano2020-02-042020-02-042019D’Andrea C, Garcia-Rodriguez A, Geraci G, Galati Giordano L, Buzzi S. Cell-free massive MIMO for UAV communications. In: 2019 IEEE International Conference on Communications Workshops (ICC Workshops) Proceedings; 2019 May 20-24; Shanghai, China. New York: IEEE; 2019. [6 p.] DOI: 10.1109/ICCW.2019.8756714978-1-7281-2373-82474-9133http://hdl.handle.net/10230/43475Comunicació presentada a: The IEEE International Conference on Communications Workshops (ICC Workshops), celebrat del 20 al 24 de maig de 2019 a Shanghai, Xina.We study support for unmanned aerial vehicle (UAV) communications through a cell-free massive MIMO ar- chitecture. Under the general assumption that the propagation channel between the mobile stations, either UAVs or ground users, and the access points follows a Ricean distribution, we derive closed form spectral efficiency lower bounds for uplink and downlink with linear minimum mean square error (LMMSE) channel estimation. We also propose power allocation and user scheduling strategies for such a system. Our numerical results reveal that a cell-free massive MIMO architecture may provide better performance than a traditional multicell massive MIMO network deployment.application/pdfeng© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. http://dx.doi.org/10.1109/ICCW.2019.8756714info:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1109/ICCW.2019.8756714Cell-free massive MIMORicean fading channelSpectral efficiencyPower allocationUAV communicationsUser centricinfo:eu-repo/semantics/openAccess