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Unequal error protection (UEP) coding that enables differentiated reliability levels within a transmitted message is essential for modern communication systems. Autoencoder (AE)-based code designs have shown promise in the context of…

Information Theory · Computer Science 2025-08-12 Vukan Ninkovic , Dejan Vukobratovic

This paper proposes a closed-loop sparse channel estimation (CE) scheme for wideband millimeter-wave hybrid full-dimensional multiple-input multiple-output and time division duplexing based systems, which exploits the channel sparsity in…

Information Theory · Computer Science 2019-09-17 Anwen Liao , Zhen Gao , Hua Wang , Sheng Chen , Mohamed-Slim Alouini , Hao Yin

Recent multimodal systems often rely on separate expert modality encoders which cause linearly scaling complexity and computational overhead with added modalities. While unified Omni-models address this via Mixture-of-Expert (MoE)…

Multimedia · Computer Science 2026-03-09 Kin Wai Lau , Yasar Abbas Ur Rehman , Lai-Man Po , Pedro Porto Buarque de Gusmão

Human computer interaction (HCI) involves a multidisciplinary fusion of technologies, through which the control of external devices could be achieved by monitoring physiological status of users. However, physiological biosignals often vary…

Signal Processing · Electrical Eng. & Systems 2020-09-29 Mo Han , Ozan Ozdenizci , Toshiaki Koike-Akino , Ye Wang , Deniz Erdogmus

In frequency division duplex (FDD) systems, acquiring channel state information (CSI) at the base station (BS) traditionally relies on limited feedback from mobile terminals (MTs). However, the accuracy of channel reconstruction from…

Information Theory · Computer Science 2025-03-10 Yunseo Nam , Jiwook Choi

In this paper, we propose a new beamforming design to maximize energy efficiency (EE) for multiple input single output interfering broadcast channels (IFBC). Under this model, the EE problem is non-convex in general due to the coupled…

Information Theory · Computer Science 2015-08-28 Sang-Rim Lee , Jaehoon Jung , Haewook Park , Inkyu Lee

The advent of deep learning (DL)-based models has significantly advanced Channel State Information (CSI) feedback mechanisms in wireless communication systems. However, traditional approaches often suffer from high communication overhead…

Artificial Intelligence · Computer Science 2023-12-12 Zhilin Du , Haozhen Li , Zhenyu Liu , Shilong Fan , Xinyu Gu , Lin Zhang

We consider the design of linear precoders and receivers in a Multiple-Input Single-Output (MISO) Broadcast Channel (BC). We aim at minimizing the transmit power while fullfiling a set of per-user Quality-of-Service (QoS) constraints…

Information Theory · Computer Science 2016-10-04 José P. González-Coma , Michael Joham , Paula M. Castro , Luis Castedo

In multiple access channels (MAC), multiple users share a transmission medium to communicate with a common receiver. Traditional constellations like quadrature amplitude modulation are optimized for point-to-point systems and lack…

Information Theory · Computer Science 2025-05-05 Stepan Gorelenkov , Mojtaba Vaezi

Large language models (LLMs) have achieved remarkable success across a wide range of tasks, particularly in natural language processing and computer vision. This success naturally raises an intriguing yet unexplored question: Can LLMs be…

Information Theory · Computer Science 2025-01-22 Yiming Cui , Jiajia Guo , Chao-Kai Wen , Shi Jin , En Tong

Hybrid multiple-antenna transceivers, which combine large-dimensional analog pre/postprocessing with lower-dimensional digital processing, are the most promising approach for reducing the hardware cost and training overhead in massive MIMO…

Information Theory · Computer Science 2017-05-02 Andreas F. Molisch , Vishnu V. Ratnam , Shengqian Han , Zheda Li , Sinh Le Hong Nguyen , Linsheng Li , Katsuyuki Haneda

Transformer-based large language models exhibit groundbreaking capabilities, but their storage and computational costs are prohibitively high, limiting their application in resource-constrained scenarios. An effective approach is to…

Machine Learning · Computer Science 2024-12-18 Jing Zhang , Shuzhen Sun , Peng Zhang , Guangxing Cao , Hui Gao , Xindian Ma , Nan Xu , Yuexian Hou

Accurate precoding in massive multiple-input multiple-output (MIMO) frequency-division duplexing (FDD) systems relies on efficient channel state information (CSI) acquisition. End-to-end learning frameworks improve performance by jointly…

Signal Processing · Electrical Eng. & Systems 2026-01-15 Weibo Wen , Shijian Gao , Haotian Zhang , Xiang Cheng , Liuqing Yang

Deep learning-based channel state information (CSI) feedback schemes demonstrate strong compression capabilities but are typically constrained to fixed system configurations, limiting their generalization and flexibility. To address this…

Signal Processing · Electrical Eng. & Systems 2025-08-08 Xuanyu Liu , Shijian Gao , Boxun Liu , Xiang Cheng , Liuqing Yang

Massive multiple-input multiple-output (mMIMO) regime reaps the benefits of spatial diversity and multiplexing gains, subject to precise channel state information (CSI) acquisition. In the current communication architecture, the downlink…

Information Theory · Computer Science 2022-08-26 Muhammad Karam Shehzad , Luca Rose , Stefan Wesemann , Mohamad Assaad , Syed Ali Hassan

Recently Autoencoder(AE) based models are widely used in the field of anomaly detection. A model trained with normal data generates a larger restoration error for abnormal data. Whether or not abnormal data is determined by observing the…

Machine Learning · Computer Science 2021-07-20 JoonSung Lee , YeongHyeon Park

Quantum autoencoder is an efficient variational quantum algorithm for quantum data compression. However, previous quantum autoencoders fail to compress and recover high-rank mixed states. In this work, we discuss the fundamental properties…

Quantum Physics · Physics 2021-05-07 Chenfeng Cao , Xin Wang

Hybrid beamforming (HBF) and antenna selection are promising techniques for improving the energy efficiency~(EE) of massive multiple-input multiple-output~(mMIMO) systems. However, the transmitter architecture may contain several parameters…

Signal Processing · Electrical Eng. & Systems 2024-07-01 Hamed Hojatian , Zoubeir Mlika , Jérémy Nadal , Jean-François Frigon , François Leduc-Primeau

Channel state information (CSI) at the base station (BS) is crucial to achieve beamforming and multiplexing gains in multiple-input multiple-output (MIMO) systems. State-of-the-art limited feedback schemes require feedback overhead that…

Information Theory · Computer Science 2018-10-17 Panos N. Alevizos , Xiao Fu , Nicholas D. Sidiropoulos , Yang Ye , Aggelos Bletsas

Wireless foundation models promise transformative capabilities for channel state information (CSI) processing across diverse 6G network applications, yet face fundamental challenges due to the inherent dual heterogeneity of CSI across both…

Machine Learning · Computer Science 2026-01-27 Chenyu Zhang , Xinchen Lyu , Chenshan Ren , Shuhan Liu , Qimei Cui , Xiaofeng Tao
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