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Wearable, implantable, and ingestible antennas are continuously evolving in biomedical applications, as they are crucial components in devices used for monitoring and controlling physiological parameters. This work presents an…

Systems and Control · Electrical Eng. & Systems 2024-11-20 Maria Koutsoupidou , Dimitrios C. Tzarouchis , Dionysios Rompolas , Ioannis Sotiriou , George Palikaras , Panagiotis Kosmas

Recent developments in Multiple-Input-Multiple-Output (MIMO) technology include packing a large number of antenna elements in a compact array to access the bandwidth benefits provided by higher mutual coupling (MC). The resulting…

Information Theory · Computer Science 2025-05-28 Sachitha C. Bandara , Peter J. Smith , Erfan Khordad , Robin Evans , Rajitha Senanayake

In the rapidly growing development of the Internet of Things (IoT) infrastructure, achieving reliable wireless communication is a challenge. IoT devices operate in diverse environments with common signal interference and fluctuating channel…

Machine Learning · Computer Science 2024-05-22 Samrah Arif , Muhammad Arif Khan , Sabih Ur Rehman

We devise an end-to-end communication channel model that describes the performance of RIS-assisted MIMO wireless links. The model borrows the impedance (interaction) matrix formalism from the Method of Moments and provides a physics-based…

Information Theory · Computer Science 2023-06-07 Keisuke Konno , Sergio Terranova , Qiang Chen , Gabriele Gradoni

We theoretically and numerically investigate metamaterials composed of coupled resonators with indirect coupling. First, we theoretically analyze a mechanical model of coupled resonators with indirect coupling. The theoretical analysis…

Optics · Physics 2014-03-04 Yasuhiro Tamayama , Kanji Yasui , Toshihiro Nakanishi , Masao Kitano

Molecular communication is a novel approach for data transmission between miniaturized devices, especially in contexts where electrical signals are to be avoided. The communication is based on sending molecules (or other particles) at nano…

Emerging Technologies · Computer Science 2023-08-08 Max Bartunik , Jens Kirchner , Oliver Keszocze

Underwater magnetic induction communications (UWMICs) provide a low-power and high-throughput solution for autonomous underwater vehicles (AUVs), which are envisioned to explore and monitor the underwater environment. UWMIC with tri-axis…

Signal Processing · Electrical Eng. & Systems 2019-07-24 Hongzhi Guo , Zhi Sun , Pu Wang

Non-radiative coupling between conductive coils is a candidate mechanism for wireless energy transfer applications. In this paper, we propose a power relay system based on a near-field metamaterial superlens, and present a thorough…

Classical Physics · Physics 2011-07-25 Yaroslav Urzhumov , David R. Smith

This paper presents an end-to-end deep learning framework in a movable antenna (MA)-enabled multiuser communication system. In contrast to the conventional works assuming perfect channel state information (CSI), we address the practical CSI…

Information Theory · Computer Science 2025-09-16 Ruizhi Zhang , Yuchen Zhang , Lipeng Zhu , Ying Zhang , Rui Zhang

Magnetic Resonance Imaging (MRI) is crucial in global healthcare, but the traditional receive coils, as a core component of MRI, SNR enhancement is limited due to the optimization of channel number and magnetic field strength faces high…

Micro-scale implantable medical devices (IMDs) extend the immense benefits of sensors used in health management. However, their development is limited by many requirements and challenges, such as the use of safe materials, size…

Information Theory · Computer Science 2018-06-19 Michael Okwori , Ali Behfarnia , Phanikumar Vuka , Ali Eslami

Acquiring and utilizing accurate channel state information (CSI) can significantly improve transmission performance, thereby holding a crucial role in realizing the potential advantages of massive multiple-input multiple-output (MIMO)…

Information Theory · Computer Science 2024-03-21 Haotian Wu , Maojun Zhang , Yulin Shao , Krystian Mikolajczyk , Deniz Gündüz

The future wireless communication system faces the bottleneck of the shortage of traditional spectrum resources and the explosive growth of the demand for wireless services. Millimeter-wave communication with spectral resources has become…

Signal Processing · Electrical Eng. & Systems 2023-01-13 Quanda Zhang , Hudi Wang

The doubly-dispersive (DD) channel structure has played a pivotal role in wireless communications, particularly in high-mobility scenarios and integrated sensing and communications (ISAC), due to its ability to capture the key fading…

Beamforming techniques are utilized in millimeter wave (mmWave) communication to address the inherent path loss limitation, thereby establishing and maintaining reliable connections. However, adopting standard defined beamforming approach…

Networking and Internet Architecture · Computer Science 2025-09-16 Muhammad Baqer Mollah , Honggang Wang , Hua Fang

This paper reviews the multiple access techniques for machine-to-machine (M2M) communications in future wireless cellular networks. M2M communications aims at providing te communication infrastructure for the emerging Internet of Things…

Information Theory · Computer Science 2018-07-13 Mahyar Shirvanimoghaddam , Sarah Johnson

Rapid advances in metamaterial technology are enabling the engineering of wave-matter interactions heretofore not realized and functionalities with potentially far-reaching implications for major challenges in the fields of energy…

Applied Physics · Physics 2021-01-18 Mahdi Safari , Nazir P. Kherani , George V. Eleftheriades

Increasing attention on microwave ultra-broadband metamaterial absorbers has been paid due to their promising applications. While most microwave ultra-broadband metamaterial absorbers developed so far are based on metallic resonant…

Applied Physics · Physics 2021-12-28 Jingda Wen , Qiang Ren , Ruiguang Peng , Haoyang Yao , Yuchang Qing , Jianbo Yin , Qian Zhao

We show that meta-antennas made of a composite material displaying type II hyperbolic dispersion enable precise and controlled spectral separation of absorption and scattering processes in the visible/near-infrared frequency range. The…

This letter considers a two-panel massive multiple-input multiple-output (MIMO) communication system, where the base station (BS) is equipped with two antenna panels that may use different frequency bands for communication. By exploiting…

Information Theory · Computer Science 2024-02-09 Y. Qiu , D. W , Y. Zeng