@conference {969, title = {Flexible spectral precoding for OFDM systems}, booktitle = {2nd XoveTIC Conference}, year = {2019}, month = {09/2019}, address = {A Coru{\~n}a (Spain)}, abstract = {
Spectral precoding is a popular approach to reduce out-of-band radiation (OBR) in
multicarrier systems in order to avoid adjacent channel interference. However, it introduces
distortion in the data, appropriate decoding is required at the receiver side. Thus, trading off
between implementation complexity, OBR reduction and error rate is important. We present a novel
linear precoder design with flexibility to trade off OBR reduction, precoding/decoding complexity,
and error rate at the receiver. Moreover, the constraint can be imposed on each subcarrier individually
to provide more flexibility. The precoding matrices have low rank, which translates into significant
computational savings. In this way, the requirements of different systems can be satisfied with
varying complexity levels
}, keywords = {spectrum shaping, winter}, doi = {10.3390/proceedings2019021024}, author = {Khawar Hussain and R. L{\'o}pez-Valcarce} }