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Conferences > OFC > 2020 > Th2A > Th2A.51

Reduction in Complexity of Volterra Filter by Employing ℓ0-Regularization in 112-Gbps PAM-4 VCSEL Optical Interconnect

Yi-Yu Lin, Chun-Jui Chen, Hong-Minh Nguyen, Chun-Yen Chuang, Chia-Chien Wei, Jyehong Chen, and Jin-Wei Shi

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Abstract

We employ ℓ0-regularization to reduce Volterra filter complexity by up to 90% in 112-Gbps PAM-4 VCSEL transmission. Compared to ℓ1-regularization, ℓ0-regularization achieves lower complexity and more precise weights without retraining after sparse identification.

© 2020 The Author(s)

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