SWAN: Swarm-Based Low-Complexity Scheme for PAPR Reduction
Abstract
Cyclically shifted partial transmit sequences (CS-PTS) has conventionally been used in SISO systems for PAPR reduction of OFDM signals. Compared to other techniques, CS-PTS attains superior performance. Nevertheless, due to the exhaustive search requirement, it demands excessive computational complexity. In this paper, we adapt CS-PTS to operate in a MIMO framework, where singular value decomposition (SVD) precoding is employed. We also propose SWAN, a novel optimization method based on swarm intelligence to circumvent the exhaustive search. SWAN not only provides a significant reduction in computational complexity, but it also attains a fair balance between optimality and complexity. Through simulations, we show that SWAN achieves near-optimal performance at a much lower complexity than other competing approaches.
Keywords
Cite
@article{arxiv.2008.07600,
title = {SWAN: Swarm-Based Low-Complexity Scheme for PAPR Reduction},
author = {Luis F. Abanto-Leon and Gek Hong Sim and Matthias Hollick and Amnart Boonkajay and Fumiyuki Adachi},
journal= {arXiv preprint arXiv:2008.07600},
year = {2020}
}
Comments
IEEE GLOBECOM 2020