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Reconfigurable intelligent surface (RIS)-empowered communications is on the rise and is a promising technology envisioned to aid in 6G and beyond wireless communication networks. RISs can manipulate impinging waves through their…

Signal Processing · Electrical Eng. & Systems 2022-05-19 Emre Arslan , Ibrahim Yildirim , Fatih Kilinc , Ertugrul Basar

Delay alignment modulation (DAM) has been recently proposed to enable manipulable channel delay spread for efficient single- or multi-carrier communications. In particular, with perfect delay alignment, inter-symbol interference (ISI) can…

Signal Processing · Electrical Eng. & Systems 2022-07-11 Zhiqiang Xiao , Yong Zeng

Unmanned Aerial Vehicles (UAVs) have emerged as a key enabler technology for data collection from Internet of Things (IoT) devices. However, effective data collection is challenged by resource constraints and the need for real-time…

Robotics · Computer Science 2026-05-12 Assane Sankara , Daniel Bonilla Licea , Hajar El Hammouti

Semantic communication is focused on optimizing the exchange of information by transmitting only the most relevant data required to convey the intended message to the receiver and achieve the desired communication goal. For example, if we…

Information Theory · Computer Science 2024-02-05 Fatemeh Zahra Safaeipour , Morteza Hashemi

Satellite communications can provide massive connections and seamless coverage, but they also face several challenges, such as rain attenuation, long propagation delays, and co-channel interference. To improve transmission efficiency and…

Signal Processing · Electrical Eng. & Systems 2024-10-27 Peiwen Jiang , Chao-Kai Wen , Xiao Li , Shi Jin , Geoffrey Ye Li

Stacked intelligent metasurfaces (SIMs) have emerged as a promising technology for realizing wave-domain signal processing, while the fixed SIMs will limit the communication performance of the system compared to the mobile SIMs. In this…

Networking and Internet Architecture · Computer Science 2025-08-04 Mingzhe Fan , Geng Sun , Hongyang Pan , Jiacheng Wang , Jiancheng An , Hongyang Du , Chau Yuen

We investigate the achievable rate (AR) of a stacked intelligent metasurface (SIM)-aided holographic multiple-input multiple-output (HMIMO) system by jointly optimizing the SIM phase shifts and power allocation. Contrary to earlier studies…

Signal Processing · Electrical Eng. & Systems 2025-08-14 Eduard E. Bahingayi , Nemanja Stefan Perović , Le-Nam Tran

We investigate the integration of stacked intelligent metasurfaces (SIMs) into cell-free massive multiple input multiple output (CF-mMIMO) system to enhance the simultaneous wireless information and power transfer (SWIPT) performance.…

Signal Processing · Electrical Eng. & Systems 2025-03-19 Thien Duc Hua , Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou

Semantic communication (SemCom) with learned encoder-decoder architectures enables end-to-end learning of compact task-oriented representations optimized for the wireless channel, reducing channel resources needed to convey task-relevant…

Information Theory · Computer Science 2026-05-08 Yalin E. Sagduyu , Tugba Erpek

Semantic communication has gained significant attention with the advances in machine learning. Most semantic communication works focus on either task execution or data reconstruction, with some recent works combining the two. In this work,…

Signal Processing · Electrical Eng. & Systems 2025-10-24 Maximilian H. V. Tillmann , Avinash Kankari , Carsten Bockelmann , Armin Dekorsy

Semantic communication has emerged as a promising technology to break the Shannon limit by extracting the meaning of source data and sending relevant semantic information only. However, some mobile devices may have limited computation and…

Information Theory · Computer Science 2023-11-17 Tianyu Liu , Changsheng You , Zeyang Hu , Chenyu Wu , Yi Gong , Kaibin Huang

Semantic communication is a novel communication paradigm which draws inspiration from human communication focusing on the delivery of the meaning of a message to the intended users. It has attracted significant interest recently due to its…

Networking and Internet Architecture · Computer Science 2022-03-17 Yong Xiao , Yingyu Li , Guangming Shi , H. Vincent Poor

With deployment of 6G technology, it is envisioned that competitive edge of wireless networks will be sustained and next decade's communication requirements will be stratified. Also 6G will aim to aid development of a human society which is…

Networking and Internet Architecture · Computer Science 2023-09-08 Sridhar Iyer , Rajashri Khanai , Dattaprasad Torse , Rahul Jashvantbhai Pandya , Khaled Rabie , Krishna Pai , Wali Ullah Khan , Zubair Fadlullah

3D semantic maps have played an increasingly important role in high-precision robot localization and scene understanding. However, real-time construction of semantic maps requires mobile edge devices with extremely high computing power,…

Robotics · Computer Science 2024-12-03 Jiaxing Zhang , Luosong Guo , Kun Zhu , Houming Qiu

In the coming sixth generation (6G) communication era, to provide seamless and ubiquitous connections, the space-air-ground-sea integrated network (SAGSIN) is envisioned to address the challenges of communication coverage in areas with…

Information Theory · Computer Science 2024-06-18 Siqi Meng , Shaohua Wu , Jiaming Zhang , Junlan Cheng , Haibo Zhou , Qinyu Zhang

This paper investigates a downlink multiuser multiple-input single-output system that integrates rate-splitting multiple access (RSMA) with a stacked intelligent metasurface (SIM) to enable wave-domain beamforming. Unlike conventional…

Systems and Control · Electrical Eng. & Systems 2025-11-17 Abdullah Quran , Shimaa Naser , Maryam Tariq , Omar Alhussein , Sami Muhaidat

Flexible intelligent metasurface (FIM) is a recently developed, groundbreaking hardware technology with promising potential for 6G wireless systems. Unlike conventional rigid antenna array (RAA)-based transmitters, FIM-assisted transmitters…

Semantic communication enables intelligent agents to extract meaning (or semantics) of information via interaction, to carry out collaborative tasks. In this paper, we study semantic communication from a topological space perspective, in…

Signal Processing · Electrical Eng. & Systems 2022-11-01 Qiyang Zhao , Mehdi Bennis , Merouane Debbah , Daniel Benevides da Costa

This paper introduces a novel approach for real-time onboard terrain classification from Sentinel-1 (S1) level-0 raw In-phase/Quadrature (IQ) data, leveraging a Stacked Intelligent Metasurface (SIM) to perform inference directly in the…

Signal Processing · Electrical Eng. & Systems 2025-03-19 Mengbing Liu , Xin Li , Jiancheng An , Chau Yuen

Semantic communication (SemCom) is emerging as a key technology for future sixth-generation (6G) systems. Unlike traditional bit-level communication (BitCom), SemCom directly optimizes performance at the semantic level, leading to superior…

Information Theory · Computer Science 2025-07-22 Maojun Zhang , Guangxu Zhu , Richeng Jin , Xiaoming Chen , Qingjiang Shi , Caijun Zhong , Kaibin Huang