Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ali Maatouk and Ersoy Caliskan and Mutlu Koca and Mohamad Assaad and Guan Gui and Hikmet Sari,Frequency-Domain NOMA With Two Sets of Orthogonal Signal Waveforms,IEEE Communications Letters,1089-7798,Institute of Electrical and Electronics Engineers (IEEE),2018-05,22,5,906-909,https://cir.nii.ac.jp/crid/1360861710432862464,https://doi.org/10.1109/lcomm.2018.2810118