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Chang-Jen Wang
Researcher at National Chiao Tung University
Publications - 8
Citations - 505
Chang-Jen Wang is an academic researcher from National Chiao Tung University. The author has contributed to research in topics: Antenna (radio) & Robustness (computer science). The author has an hindex of 5, co-authored 7 publications receiving 375 citations.
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Bayes-Optimal Joint Channel-and-Data Estimation for Massive MIMO With Low-Precision ADCs
TL;DR: A Bayes-optimal JCD estimator is developed using a recent technique based on approximate message passing that allows the efficient evaluation of the performance of quantized massive MIMO systems and provides insights into effective system design.
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Finite-Alphabet Precoding for Massive MU-MIMO With Low-Resolution DACs
TL;DR: This paper develops efficient and universal algorithms for a downlink massive MU-MIMO system with finite-alphabet precodings based on the alternating direction method of multipliers framework and develops two algorithms called iterative discrete estimation (IDE) and IDE2.
Posted Content
Finite-Alphabet Precoding for Massive MU-MIMO with Low-resolution DACs
TL;DR: In this paper, the authors developed efficient and universal algorithms for a downlink massive MU-MIMO system with finite-alphabet precodings based on the alternating direction method of multipliers (ADMM) framework.
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Gridless Channel Estimation for Mixed One-Bit Antenna Array Systems
TL;DR: This research considers the channel estimation problem to fill this gap and proposes a two-step channel estimator by utilizing the different features of mixed outputs, which yields significantly lower mean square errors than the conventional maximum likelihood estimator.
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Decentralized Expectation Consistent Signal Recovery for Phase Retrieval
TL;DR: A phase retrieval solution that aims to recover signals from noisy phaseless measurements by leveraging the core framework of GEC-SR, and proposes a novel decentralized algorithm called deGEC- SR, which exhibits excellent performance similar to G EC-SR but runs tens to hundreds of times faster.