A. MAWJOUD S, E. MAHMOOD F. Investigation of Macrocell / Microcell Channels Selection In Multitier Cellular Networks. AREJ [Internet]. 2010 Oct. 1 [cited 2025 Oct. 3];18(5):63-72. Available from: https://jcis.uomosul.edu.iq/index.php/arej/article/view/30692