Improved Nyquist filter characteristics using spline interpolation. - Alexandra Ligia Onofrei Balan; Nicolae Dumitru Alexandru (Ann. des Télécommunications, 2009)

ICI Reduction in OFDM Systems Using Phase Modified Sinc Pulse. - Nicolae Dumitru Alexandru; Alexandra Ligia Onofrei Balan (Wirel. Pers. Commun., 2010)

Improved Nyquist Filters with Piece-Wise Parabolic Frequency Characteristics. - Nicolae Dumitru Alexandru; Alexandra Ligia Onofrei Balan (IEEE Commun. Lett., 2011)

Improved Nyquist Filters with piecewise rectangular-sine frequency characteristics. - Alexandra Ligia Onofrei Balan; Nicolae Dumitru Alexandru (COMM, 2012)

A New Pulse Shape Used to Reduce the ICI Power in OFDM Systems. - Alexandra Ligia Onofrei Balan; Nicolae Dumitru Alexandru (PECCS, 2012)

ISI-free pulses produced by a linear combination of two polynomial pulses. - Alexandra Ligia Onofrei Balan; Nicolae Dumitru Alexandru (TSP, 2012)

Development of Improved Nyquist Filters with piecewise linear frequency characteristics. - Nicolae Dumitru Alexandru; Alexandra Ligia Onofrei Balan; Felix Diaconu; Mihai Dimian (TSP, 2013)

Inter-symbol interference free pulses for transmission over Intensity-Modulated Channels. - Alexandra Ligia Onofrei Balan; Nicolae Dumitru Alexandru (COMM, 2014)

Investigation of the mechanism of improvement in improved Nyquist filters. - Nicolae Dumitru Alexandru; Alexandra Ligia Onofrei Balan (IET Signal Process., 2014)

Construction of new ISI-free pulses using a linear combination of two polynomial pulses. - Alexandra Ligia Onofrei Balan; Nicolae Dumitru Alexandru (Telecommun. Syst., 2015)

Using Apodization to Boost the Performance of Improved Nyquist Filters. - Nicolae Dumitru Alexandru; Alexandra Ligia Onofrei Balan (TSP, 2019)