Título | Mask-Compliant Orthogonal Precoding for Spectrally Efficient OFDM |
Tipo de publicación | Journal Article |
Year of Publication | 2021 |
Autores | Kumar, R, Hussain, K, López-Valcarce, R |
Journal | IEEE Transactions on Communications |
Volumen | 69 |
Incidencia | 3 |
Páginas | 1990-2001 |
Date Published | 03/2021 |
Palabras clave | rodin, spectrum shaping, winter |
Resumen | Orthogonal precoding constitutes a powerful technique to reduce spectrum sidelobes of multicarrier signals. This reduction is bought at the cost of introducing precoder redundancy, which results in some throughput loss and additional precoding/decoding complexity. When the goal is to meet some spectral emission mask constraints, it is desirable to avoid unnecessary sidelobe suppression in order to keep precoder redundancy at a minimum. In this context, we introduce a general framework under which we develop a novel Lagrange multiplier-based mask-compliant orthogonal precoder design targeting minimal redundancy. We also adapt to this framework two previously proposeddesigns based on spectral notches and minimum out-of-band emission, respectively, to explicitly incorporate mask constraints. Simulation results are provided to show the effectiveness of the proposed designs under different practical masks for multicarrier wireless systems. |
DOI | 10.1109/TCOMM.2020.3041351 |
PDF: