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Accurate channel state information (CSI) is critical to the performance of wireless communication systems, especially with the increasing scale and complexity introduced by 5G and future 6G technologies. While artificial intelligence (AI)…

Information Theory · Computer Science 2025-07-08 Jiajia Guo , Peiwen Jiang , Chao-Kai Wen , Shi Jin , Jun Zhang

The linear minimal mean square error (LMMSE) estimator for active reconfigurable intelligent surface (RIS)-aided wireless systems is formulated. Furthermore, based on the moment-matching method, we employ the Gamma distribution to…

Information Theory · Computer Science 2023-01-25 Qingchao Li , Mohammed El-Hajjar , Ibrahim Hemadeh , Deepa Jagyasi , Arman Shojaeifard , Lajos Hanzo

To estimate multiple-input multiple-output (MIMO) channels, invariable step-size normalized least mean square (ISSNLMS) algorithm was applied to adaptive channel estimation (ACE). Since the MIMO channel is often described by sparse channel…

Information Theory · Computer Science 2014-07-24 Guan Gui , Li Xu , Lin Shan , Fumiyuki Adachi

Large model has emerged as a key enabler for the popularity of future networked intelligent applications. However, the surge of data traffic brought by intelligent applications puts pressure on the resource utilization and energy…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-01-28 Haijun Zhang , Jiaxin Ni , Zijun Wu , Xiangnan Liu , V. C. M. Leung

Nowadays, deep neural networks are used for solving complex tasks in several critical applications and protecting both their integrity and intellectual property rights (IPR) has become of utmost importance. To this end, we advance WaterMAS,…

Machine Learning · Computer Science 2024-09-09 Carl De Sousa Trias , Mihai Mitrea , Attilio Fiandrotti , Marco Cagnazzo , Sumanta Chaudhuri , Enzo Tartaglione

Recent convolutional neural network (CNN) development continues to advance the state-of-the-art model accuracy for various applications. However, the enhanced accuracy comes at the cost of substantial memory bandwidth and storage…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Hsu-Hsun Chin , Ren-Song Tsay , Hsin-I Wu

We investigate sensing-assisted predictive beamforming schemes for vehicle-to-infrastructure (V2I) communication by exploiting the integrated sensing and communication (ISAC) functionalities at the roadside unit (RSU). The RSU deploys a…

Signal Processing · Electrical Eng. & Systems 2021-11-29 Zhen Du , Fan Liu , Weijie Yuan , Christos Masouros , Zenghui Zhang , Shuqiang Xia , Giuseppe Caire

This paper investigates the adaptive bitrate (ABR) video semantic communication over wireless networks. In the considered model, video sensing devices must transmit video semantic information to an edge server, to facilitate ubiquitous…

Networking and Internet Architecture · Computer Science 2023-08-02 Wentao Gong , Haonan Tong , Sihua Wang , Zhaohui Yang , Xinxin He , Changchuan Yin

Transformer architectures are now central to sequence modeling tasks. At its heart is the attention mechanism, which enables effective modeling of long-term dependencies in a sequence. Recently, transformers have been successfully applied…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Lin Zheng , Huijie Pan , Lingpeng Kong

To accelerate deep CNN models, this paper proposes a novel spatially adaptive framework that can dynamically generate pixel-wise sparsity according to the input image. The sparse scheme is pixel-wise refined, regional adaptive under a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Chen Tang , Wenyu Sun , Zhuqing Yuan , Yongpan Liu

Semantic communication addresses the limitations of the Shannon paradigm by focusing on transmitting meaning rather than exact representations, thereby reducing unnecessary resource consumption. This is particularly beneficial for video,…

Networking and Internet Architecture · Computer Science 2025-12-18 Shavbo Salehi , Pedro Enrique Iturria-Rivera , Medhat Elsayed , Majid Bavand , Yigit Ozcan , Melike Erol-Kantarci

Recently, Deep Learning (DL) techniques have been used for User Equipment (UE) positioning. However, the key shortcomings of such models is that: i) they weigh the same attention to the entire input; ii) they are not well suited for the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Parshwa Shah , Dhaval K. Patel , Brijesh Soni , Miguel López-Benítez , Siddhartan Govindasamy

The concept of reconfiguring wireless propagation environments using intelligent reflecting surfaces (IRS)s has recently emerged, where an IRS comprises of a large number of passive reflecting elements that can smartly reflect the impinging…

Information Theory · Computer Science 2020-05-05 Qurrat-Ul-Ain Nadeem , Hibatallah Alwazani , Abla Kammoun , Anas Chaaban , Merouane Debbah , Mohamed-Slim Alouini

Enabling Visual Semantic Models to effectively handle multi-view description matching has been a longstanding challenge. Existing methods typically learn a set of embeddings to find the optimal match for each view's text and compute…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Yang Liu , Wentao Feng , Zhuoyao Liu , Shudong Huang , Jiancheng Lv

Variable-rate mechanism has improved the flexibility and efficiency of learning-based image compression that trains multiple models for different rate-distortion tradeoffs. One of the most common approaches for variable-rate is to…

Image and Video Processing · Electrical Eng. & Systems 2023-03-17 Jiaming Liang , Meiqin Liu , Chao Yao , Chunyu Lin , Yao Zhao

Radio map estimation (RME), which predicts wireless signal metrics at unmeasured locations from sparse measurements, has attracted growing attention as a key enabler of intelligent wireless networks. The majority of existing RME techniques…

Signal Processing · Electrical Eng. & Systems 2026-03-24 Haihan Nan , Emmanuel Obeng Frimpong , Zhi Tian , Yue Wang , Lingjia Liu

To achieve continuous massive data transmission with significantly reduced data payload, the users can adopt semantic communication techniques to compress the redundant information by transmitting semantic features instead. However, current…

Signal Processing · Electrical Eng. & Systems 2024-01-30 Youcheng Zeng , Xinxin He , Xu Chen , Haonan Tong , Zhaohui Yang , Yijun Guo , Jianjun Hao

Image-Text Matching (ITM) task, a fundamental vision-language (VL) task, suffers from the inherent ambiguity arising from multiplicity and imperfect annotations. Deterministic functions are not sufficiently powerful to capture ambiguity,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Sanghyuk Chun

Future sixth-generation (6G) systems are expected to leverage extremely large-scale multiple-input multiple-output (XL-MIMO) technology, which significantly expands the range of the near-field region. The spherical wavefront characteristics…

Information Theory · Computer Science 2025-05-20 Shicong Liu , Xianghao Yu , Zhen Gao , Jie Xu , Derrick Wing Kwan Ng , Shuguang Cui

This paper concerns the coordinate multi-cell beamforming design for integrated sensing and communications (ISAC). In particular, we assume that each base station (BS) has massive antennas. The optimization objective is to maximize a…

Information Theory · Computer Science 2025-03-31 Yannan Chen , Yi Feng , Xiaoyang Li , Licheng Zhao , Kaiming Shen