TY - JOUR T1 - General Form of the Power Spectral Density of Multicarrier Signals JF - IEEE Communications Letters Y1 - 2022 A1 - R. López-Valcarce KW - rodin KW - spectrum shaping AB -
Multicarrier modulation has been adopted in many modern communication systems because of its many appealing 
properties. Its relatively high out-of-band radiation has spurred many techniques to shape the power spectral density (PSD) 
of multicarrier signals, including spectral precoding and pulse shaping. We derive a general expression for the PSD which is 
valid for subcarrier-specific pulses and for spectral precoders operating over multiple blocks. The only statistical assumptions 
on the vector-valued sequence modulating the active subcarriers are wide-sense cyclostationarity and properness. The applicability 
of the result to a number of popular multicarrier formats is discussed.
VL - 26 IS - 8 ER -