Maximally Frequency Selective Wavelet Packets Based Multi-Carrier Modulation Scheme for Cognitive Radio Systems. - Madan Kumar Lakshmanan; Ibrahim Budiarjo; Homayoun Nikookar (GLOBECOM, 2007)

On the Use of Virtual Pilots with Decision Directed Method in OFDM Based Cognitive Radio Channel Estimation Using 2x1-D Wiener Filter. - Ibrahim Budiarjo; Ikhsan Rashad; Homayoun Nikookar (ICC, 2008)

Wavelet Packet Multi-Carrier Modulation MIMO Based Cognitive Radio Systems with VBLAST Receiver Architecture. - Madan Kumar Lakshmanan; Ibrahim Budiarjo; Homayoun Nikookar (WCNC, 2008)

Cognitive Radio with Single Carrier TDCS and Multicarrier OFDM Approach with V-BLAST Receiver in Rayleigh Fading Channel. - Ibrahim Budiarjo; Homayoun Nikookar; Leo P. Ligthart (Mob. Networks Appl., 2008)

Cognitive radio modulation techniques. - Ibrahim Budiarjo; Homayoun Nikookar; Leo P. Ligthart (IEEE Signal Process. Mag., 2008)

Cognitive Radio Dynamic Access Techniques. - Ibrahim Budiarjo; Madan Kumar Lakshmanan; Homayoun Nikookar (Wirel. Pers. Commun., 2008)

Wavelet Packet Multi-carrier modulation MIMO architecture for spectrum pooling systems. - Madan Kumar Lakshmanan; Ibrahim Budiarjo; Homayoun Nikookar (CrownCom, 2009)

Wavelet Packet Multi-carrier Modulation based Spectrum Pooling Systems with Low Mutual Interference. - Homayoun Nikookar; Madan Kumar Lakshmanan; Ibrahim Budiarjo (VTC Fall, 2009)

MIMO TDCS with extra embedded symbol for higher data rates in overlay spectrum sharing system. - Ibrahim Budiarjo; Homayoun Nikookar (WCNC, 2009)