On the spectral efficiency of large CDMA systems using higher order modulation. - Oliver Prätor; Gerhard P. Fettweis (PIMRC, 2003)

On the spectral efficiency of DS-CDMA with higher order modulation in presence of fading. - Oliver Prätor; Gerhard P. Fettweis (WCNC, 2005)

On the outage behaviour of large DS-CDMA systems with LMMSE detection. - Oliver Prätor; Gerhard P. Fettweis (Eur. Trans. Telecommun., 2006)