%0 Journal Article
%J IEEE Transactions on Communications
%D 2021
%T Mask-Compliant Orthogonal Precoding for Spectrally Efficient OFDM
%A Ravinder Kumar
%A Khawar Hussain
%A R. López-Valcarce
%K rodin
%K spectrum shaping
%K winter
%X
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 proposed
designs 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.
%B IEEE Transactions on Communications
%V 69
%P 1990-2001
%8 03/2021
%G eng
%N 3
%R 10.1109/TCOMM.2020.3041351