Narrowband propagation characteristics at 2.45 and 18 GHz in underground mining environments. - Mourad Djadel; Charles L. Despins; Sofiène Affes (GLOBECOM, 2002)

Narrowband and wideband radio channel characteristics in underground mining environments at 2.4 GHz. - Chahé Nerguizian; Mourad Djadel; Charles L. Despins; Sofiène Affes (PIMRC, 2003)