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This paper considers a multi-antenna multicast system with programmable metasurface (PMS) based transmitter. Taking into account of the finite-resolution phase shifts of PMSs, a novel beam training approach is proposed, which achieves…

Information Theory · Computer Science 2020-02-21 Xiaoling Hu , Caijun Zhong , Yongxu Zhu , Xiaoming Chen , Zhaoyang Zhang

Distributed computing frameworks such as MapReduce and Spark are often used to process large-scale data computing jobs. In wireless scenarios, exchanging data among distributed nodes would seriously suffer from the communication bottleneck…

Information Theory · Computer Science 2023-10-25 Youlong Wu , Zhenhao Huang , Kai Yuan , Shuai Ma , Yue Bi

The paper proposes a new approach to minimize the number of relays while maximizing the lifetime of underwater acoustic sensor networks (UASNs). This involves formulating the relay node placement (RNP) problem as a multi-objective…

Networking and Internet Architecture · Computer Science 2023-10-05 Z. Mohammadi , M. Soleimanpour-Moghadam , S. Talebi , H. Ahmadi

Wireless network capacity can be regarded as the most important performance metric for wireless communication systems. With the fast development of wireless communication technology, future wireless systems will become more and more…

Information Theory · Computer Science 2022-08-17 Han Hao , Dandan Jiang , Lu Yang , Hao Wu , Bo Bai

There is an increasing interest in applying deep learning to 3D mesh segmentation. We observe that 1) existing feature-based techniques are often slow or sensitive to feature resizing, 2) there are minimal comparative studies and 3)…

Graphics · Computer Science 2018-02-09 David George , Xianghua Xie , Gary KL Tam

With the widespread use of Deep Neural Networks (DNNs), machine learning algorithms have evolved in two diverse directions -- one with ever-increasing connection density for better accuracy and the other with more compact sizing for energy…

Hardware Architecture · Computer Science 2021-07-07 Gokul Krishnan , Sumit K. Mandal , Chaitali Chakrabarti , Jae-sun Seo , Umit Y. Ogras , Yu Cao

In this paper, we study channel tracking for the wireless energy transfer (WET) system, which is practically a very important, but challenging problem. Regarding the time-varying channels as a sequence to be predicted, we exploit the…

Information Theory · Computer Science 2018-12-10 Jae-Mo Kang , Chang-Jae Chun , Il-Min Kim , Dong In Kim

Physics-constrained neural networks are commonly employed to enhance prediction robustness compared to purely data-driven models, achieved through the inclusion of physical constraint losses during the model training process. However, one…

Machine Learning · Computer Science 2024-02-06 Hao Zhou , Sibo Cheng , Rossella Arcucci

Multicast transmission and wireless caching are effective ways of reducing air and backhaul traffic load in wireless networks. This paper proposes to incorporate these two key ideas for content-centric multicast transmission in a cloud…

Information Theory · Computer Science 2015-08-12 Hao Zhou , Meixia Tao , Erkai Chen , Wei Yu

For the 6G mobile networks, in-situ model downloading has emerged as an important use case to enable real-time adaptive artificial intelligence on edge devices. However, the simultaneous downloading of diverse and high-dimensional models to…

Information Theory · Computer Science 2023-07-31 Hai Wu , Qunsong Zeng , Kaibin Huang

Automatic modulation classification (AMC) is an essential technique for noncooperative spectrum monitoring and intelligent wireless receivers. However, practical AMC models must identify modulation formats from short and noisy I/Q…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Ruixiang Zhang , Zinan Zhou , Yezhuo Zhang , Guangyu Li , Xuanpeng Li

In this paper, we investigate a hybrid multicast/ unicast scheme for a multiple-input single-output cache-aided non-orthogonal multiple access (NOMA) vehicular scenario in the face of rapidly fluctuating vehicular wireless channels.…

Information Theory · Computer Science 2020-11-24 Xinyue Pei , Hua Yu , Yingyang Chen , Miaowen Wen , Gaojie Chen

Graph Convolutional Networks (GCNs) are state-of-the-art deep learning models for representation learning on graphs. However, the efficient training of GCNs is hampered by constraints in memory capacity and bandwidth, compounded by the…

Hardware Architecture · Computer Science 2024-11-07 Qizhe Wu , Letian Zhao , Yuchen Gui , Huawen Liang Xiaotian Wang

In underwater acoustic (UWA) communication, orthogonal frequency division multiplexing (OFDM) is commonly employed to mitigate the inter-symbol interference (ISI) caused by delay spread. However, path-specific Doppler effects in UWA…

Signal Processing · Electrical Eng. & Systems 2024-09-24 Xiaoquan You , Hengyu Zhang , Xuehan Wang , Jintao Wang

Augmenting wireless networks with Unmanned Aerial Vehicles (UAVs), commonly referred to as drones, offers a promising avenue for providing reliable, cost-effective, and on-demand wireless services to desired areas. However, existing UAV…

Networking and Internet Architecture · Computer Science 2021-01-27 Aksh Garg

Network Utility Maximization (NUM) is often applied for the cross-layer design of wireless networks considering known wireless channels. However, realistic wireless channel capacities are stochastic bearing time-varying statistics,…

Systems and Control · Computer Science 2016-06-14 Eleni Stai , Michail Loulakis , Symeon Papavassiliou

The use of machine learning methods to tackle challenging physical layer signal processing tasks has attracted significant attention. In this work, we focus on the use of neural networks (NNs) to perform pilot-assisted channel estimation in…

Signal Processing · Electrical Eng. & Systems 2020-02-26 Michel van Lier , Alexios Balatsoukas-Stimming , Henk Corporaaal , Zoran Zivkovic

Mixed-precision neural network (MPNN) that utilizes just enough data width for the neural network processing is an effective approach to meet the stringent resources constraints including memory and computing of MCUs. Nevertheless, there is…

Hardware Architecture · Computer Science 2024-07-29 Junfeng Gong , Cheng Liu , Long Cheng , Huawei Li , Xiaowei Li

For a self-sustaining wireless communication system in Internet-of-Things (IoT) networks, energy harvesting (EH) can be implemented at each user node as a constant renewable power supply source. Hence, an investigation into the use of…

Information Theory · Computer Science 2020-04-16 Derek Kwaku Pobi Asiedu , Sumaila Mahama , Changick Song , Dongwan Kim , Kyoung-Jae Lee

Distributed multichannel active noise control (DMCANC) offers effective noise reduction across large spatial areas by distributing the computational load of centralized control to multiple low-cost nodes. Conventional DMCANC methods,…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-23 Junwei Ji , Dongyuan Shi , Boxiang Wang , Ziyi Yang , Haowen Li , Woon-Seng Gan