Zobrazeno 1 - 10
of 325
pro vyhledávání: '"Chang, Tsung-Hui"'
In the modern paradigm of multi-agent networks, communication has become one of the main bottlenecks for decentralized optimization, where a large number of agents are involved in minimizing the average of the local cost functions. In this paper, we
Externí odkaz:
http://arxiv.org/abs/2408.01727
Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the functionalities of next generation wireless communication systems. However, as the number of antennas increases, ELAA systems face significant bottlenecks, such as exces
Externí odkaz:
http://arxiv.org/abs/2407.16121
In this work, we focus on the alignment problem of diffusion models with a continuous reward function, which represents specific objectives for downstream tasks, such as improving human preference. The central goal of the alignment problem is to adju
Externí odkaz:
http://arxiv.org/abs/2405.18881
Diffusion models have emerged as state-of-the-art generative models for image generation. However, sampling from diffusion models is usually time-consuming due to the inherent autoregressive nature of their sampling process. In this work, we propose
Externí odkaz:
http://arxiv.org/abs/2402.09970
Autor:
Tang, Zhiwei, Chang, Tsung-Hui
In Federated Learning (FL), a framework to train machine learning models across distributed data, well-known algorithms like FedAvg tend to have slow convergence rates, resulting in high communication costs during training. To address this challenge,
Externí odkaz:
http://arxiv.org/abs/2402.09941
Autor:
Liu, Ya-Feng, Chang, Tsung-Hui, Hong, Mingyi, Wu, Zheyu, So, Anthony Man-Cho, Jorswieck, Eduard A., Yu, Wei
Mathematical optimization is now widely regarded as an indispensable modeling and solution tool for the design of wireless communications systems. While optimization has played a significant role in the revolutionary progress in wireless communicatio
Externí odkaz:
http://arxiv.org/abs/2401.12025
This paper considers the quality-of-service (QoS)-based joint beamforming and compression design problem in the downlink cooperative cellular network, where multiple relay-like base stations (BSs), connected to the central processor via rate-limited
Externí odkaz:
http://arxiv.org/abs/2306.13962
Recently, the decentralized baseband processing (DBP) paradigm and relevant detection methods have been proposed to enable extremely large-scale massive multiple-input multiple-output technology. Under the DBP architecture, base station antennas are
Externí odkaz:
http://arxiv.org/abs/2305.12805
In this study, we delve into an emerging optimization challenge involving a black-box objective function that can only be gauged via a ranking oracle-a situation frequently encountered in real-world scenarios, especially when the function is evaluate
Externí odkaz:
http://arxiv.org/abs/2303.03751
Localized channel modeling is crucial for offline performance optimization of 5G cellular networks, but the existing channel models are for general scenarios and do not capture local geographical structures. In this paper, we propose a novel physics-
Externí odkaz:
http://arxiv.org/abs/2303.02308