Rajeev Kumar SHAKYA; Yibeltal ABEBAW; Demissie Jobir GELMECHA; Eshetu Tessema WARE. Improved Spectral Efficiency in Uplink Multicell Massive MIMO Cellular Communication Systems Using MMSE Channel Estimation and ZF Uplink Combining. Theory and Applications of Engineering Research Vol. 2, [S. l.], p. 42–66, 2024. DOI: 10.9734/bpi/taer/v2/8384A. Disponível em: https://stm.bookpi.org/TAER-V2/article/view/12947. Acesso em: 4 jun. 2026.