Laikanok, Rattasat, Krittaya Nakprasit, and Suwaphat Kadjantuk. “Spectrum allocation scheme on multi-user MIMO cognitive radio systems”. Interdisciplinary Research Review 14, no. 4 (October 7, 2019): 37–42. accessed September 11, 2026. https://ph02.tci-thaijo.org/index.php/jtir/article/view/221552.