Almost-optimum signature matrices in binary-input synchronous overloaded CDMA. - M. Heidari Khoozani; A. Rashidinejad; M. H. Lotfi Froushani; Pedram Pad; Farrokh Marvasti (ICT, 2011)

On Finding Sub-optimum Signature Matrices for Overloaded CDMA Systems - M. Heidari Khoozani; Farokh Marvasti; E. Azghani; Mona Ghassemian (CoRR, 2012)

Finding sub-optimum signature matrices for overloaded code division multiple access systems. - M. Heidari Khoozani; Farokh Marvasti; Masoume Azghani; Mona Ghassemian (IET Commun., 2013)

Modem based on sphere packing techniques in high-dimensional Euclidian sub-space for efficient data over voice communication through mobile voice channels. - Seyed Amir Reza Kazemi; Mahdi Boloursaz Mashhadi; M. Heidari Khoozani; Fereidoon Behnia (IET Commun., 2015)