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Reduction in Complexity of Volterra Filter by Employing 0-Regularization in 112-Gbps PAM-4 VCSEL Optical Interconnect

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We employ 0-regularization to reduce Volterra filter complexity by up to 90% in 112-Gbps PAM-4 VCSEL transmission. Compared to 1-regularization, 0-regularization achieves lower complexity and more precise weights without retraining after sparse identification.

© 2020 The Author(s)

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