RT Journal Article
T1 Low-complexity spectral shaping method for OFDM signals with dynamically adaptive emission mask
A1 Giménez, Javier
A1 Cortés-Arrabal, José Antonio
A1 Díez-del-Río, Luis
K1 Telecomunicaciones
K1 Radiofrecuencia
K1 Multiplexores
AB Orthogonal frequency division multiplexing (OFDM) signals with rectangular pulses exhibit low spectralconfinement. Shaping their power spectral density (PSD) is imperative in the increasingly overcrowded spectrum to benefit from the cognitive radio (CR) paradigm. However, since the available spectrum is non-contiguous and its occupancy changes with time, the spectral shaping solution has to be dynamically adapted. This work proposes a framework that allows using a reduced set of preoptimized pulses to shape the spectrum of OFDM signals, irrespective of its spectral width and location, by means of simple transformations. The employed pulses combine active interference cancellation (AIC) and adaptive symbol transition (AST) terms in a transparent way to the receiver. They can be easily adapted online by the communication device to changes in the location or width of the transmission band, which contrasts with existing methods of the same type that require solving NP-hard optimization problems.
PB IEEE
YR 2023
FD 2023-02-14
LK https://hdl.handle.net/10630/41245
UL https://hdl.handle.net/10630/41245
LA eng
NO J. Giménez, J. A. Cortés and L. Díez, "Low-Complexity Spectral Shaping Method for OFDM Signals With Dynamically Adaptive Emission Mask," in IEEE Transactions on Communications, vol. 71, no. 4, pp. 2351-2363, April 2023, doi: 10.1109/TCOMM.2023.3244937.
NO https://openpolicyfinder.jisc.ac.uk/id/publication/3425
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026