Vongjampa, W., P. Muangkammuen, and P. Suthisopapan. “Impact of Imperfect Channel Estimation on the Performance of Signed Quadrature Spatial Modulation in Massive MIMO Systems : Doi: 10.14456/Mijet.2022.38”. Engineering Access, vol. 8, no. 2, Sept. 2022, pp. 317-20, https://ph02.tci-thaijo.org/index.php/mijet/article/view/246918.