We analyse some of the candidates for modulations for 5G: FBMC-OQAM, GFDM-OQAM, andWCP-COQAM. Unlike most of\nthe related bibliographies, which are oriented to mobile communications, our research is focused on 5G in cognitive radio based\nindustrial wireless communications. According to the ultrareliability and low-latency requirements of industrial communications,\nwe simulate the aforementioned modulations in low-band transmissions (carrier frequencies below 6GHz and a bandwidth\nnarrower than 100MHz) through large indoor spaces and severe multipath channels that emulate industrial halls. Moreover, we\ngive detailed information aboutWCP-COQAMand how the windowing affects the protection againstmultipath effect and reduces\nspectral efficiency compared to GFDM-OQAM.We also compare the aforementioned filtered multicarrier techniques and OFDM\nin terms of robustness against multipath channels, power spectral density, and spectral efficiency. Based on these results, we aim at\nproviding an approximate idea about the suitability of 5G MCM candidates for industrial wireless communications based on CR.
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