Search Results for author: Chun-Hung Liu

Found 6 papers, 0 papers with code

Federated Deep Reinforcement Learning for THz-Beam Search with Limited CSI

no code implementations25 Apr 2023 Po-chun Hsu, Li-Hsiang Shen, Chun-Hung Liu, Kai-Ten Feng

Terahertz (THz) communication with ultra-wide available spectrum is a promising technique that can achieve the stringent requirement of high data rate in the next-generation wireless networks, yet its severe propagation attenuation significantly hinders its implementation in practice.

reinforcement-learning

Greedier is Better: Selecting Multiple Neighbors per Iteration for Sparse Subspace Clustering

no code implementations6 Apr 2022 Jwo-Yuh Wu, Liang-Chi Huang, Wen-Hsuan Li, Chun-Hung Liu, Rung-Hung Gau

Sparse subspace clustering (SSC) using greedy-based neighbor selection, such as orthogonal matching pursuit (OMP), has been known as a popular computationally-efficient alternative to the popular L1-minimization based methods.

Clustering

Spatio-Temporal Federated Learning for Massive Wireless Edge Networks

no code implementations27 Oct 2021 Chun-Hung Liu, Kai-Ten Feng, Lu Wei, Yu Luo

The STFL model not only represents the realistic intermittent learning behavior from the edge server to the mobile devices due to data delivery outage, but also features a mechanism of compensating loss learning updates in order to mitigate the impacts of intermittent learning.

Federated Learning

Modeling and Analysis of Intermittent Federated Learning Over Cellular-Connected UAV Networks

no code implementations13 Oct 2021 Chun-Hung Liu, Di-Chun Liang, Rung-Hung Gau, Lu Wei

Federated learning (FL) is a promising distributed learning technique particularly suitable for wireless learning scenarios since it can accomplish a learning task without raw data transportation so as to preserve data privacy and lower network resource consumption.

Federated Learning

Coverage Analysis for Dense Heterogeneous Networks with Cooperative NOMA

no code implementations14 Aug 2020 Chun-Hung Liu, Di-Chun Liang, Po-Chia Chen, Jie-Ru Yang

In a heterogeneous cellular network (HetNet) consisting of $M$ tiers of densely-deployed base stations (BSs), consider that each of the BSs in the HetNet that are associated with multiple users is able to simultaneously schedule and serve two users in a downlink time slot by performing the (power-domain) non-orthogonal multiple access (NOMA) scheme.

Provable Noisy Sparse Subspace Clustering using Greedy Neighbor Selection: A Coherence-Based Perspective

no code implementations2 Feb 2020 Jwo-Yuh Wu, Wen-Hsuan Li, Liang-Chi Huang, Yen-Ping Lin, Chun-Hung Liu, Rung-Hung Gau

Sparse subspace clustering (SSC) using greedy-based neighbor selection, such as matching pursuit (MP) and orthogonal matching pursuit (OMP), has been known as a popular computationally-efficient alternative to the conventional L1-minimization based methods.

Clustering

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