Two-Tier Cluster Based Routing Protocol for Wireless Sensor Networks. - Asif U. Khattak; Ghalib A. Shah; M. Ahsan (EUC, 2010)

ESIM-OFDM-based transceiver design of a visible light communication system. - M. Ahsan; Hafiz Muhammad Asif (Int. J. Commun. Syst., 2017)