Joint Precoder and Window Design for OFDM Sidelobe Suppression

Spectral precoding and windowing are two effective approaches to reduce out-of-band radiation (OBR) in multicarrier systems. Their performance comes at the price of reduced throughput and additional computational complexity, so there is strong motivation for simultaneously using both techniques. We...

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Bibliographic Details
Published in:IEEE communications letters Vol. 26; no. 12; p. 1
Main Authors: Hussain, Khawar, Lopez-Valcarce, Roberto
Format: Journal Article
Language:English
Published: New York IEEE 01.12.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Complexity
Design optimization
OFDM
out-of-band radiation
Precoding
Receivers
Redundancy
Sidelobe reduction
sidelobe suppression
Sidelobes
spectral precoding
Symbols
System effectiveness
Throughput
Transmitters
windowing
ISSN:1089-7798, 1558-2558
Online Access:Get full text
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Summary:Spectral precoding and windowing are two effective approaches to reduce out-of-band radiation (OBR) in multicarrier systems. Their performance comes at the price of reduced throughput and additional computational complexity, so there is strong motivation for simultaneously using both techniques. We present a novel design that jointly optimizes the precoder and window coefficients to minimize radiated power within a user-selectable frequency region. Results show that the proposed design achieves a better OBR/throughput/complexity tradeoff than either of these individual techniques separately.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2022.3203521