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Engineering Preprint PDF DOI

Experimental Performance of a 5G N78 Reconfigurable Intelligent Surface: From Controlled Measurements to Commercial Network Deployment

Sefa Kayrakl{i}k, Samed Kesir, Batuhan Kaplan, Ahmet Muaz Aktas, Emre Arslan, Ahmet Faruk Coskun · 2026

This paper presents a real-world experimental analysis of a modular reconfigurable intelligent surface (RIS) prototype designed to operate in the 5G N78 band. Unlike most RIS studies in the literature…

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Engineering Preprint PDF DOI

Representative Spectral Correlation Network for Multi-source Remote Sensing Image Classification

Chuanzheng Gong, Feng Gao, Junyan Lin, Junyu Dong, Qian Du · 2026

Hyperspectral image (HSI) and SAR/LiDAR data offer complementary spectral and structural information for land-cover classification. However, their effective fusion remains challenging due to two major…

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Engineering Preprint PDF DOI

Impact of Background Dense Multipath Components on Multi-Band Fusion ISAC Systems

Dexin Wang, Roberto Bomfin, Ahmad Bazzi, Marwa Chafii · 2026

Multi-band sensing has emerged as a key enabler of integrated sensing and communication (ISAC), one of the six primary usage scenarios defined for IMT-2030 (6G). The introduction of frequency range 3 …

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Engineering Preprint PDF DOI

BandRouteNet: An Adaptive Band Routing Neural Network for EEG Artifact Removal

Phat Lam · 2026

Electroencephalography (EEG) is highly susceptible to artifact contamination, such as electrooculographic (EOG) and electromyographic (EMG) interference, which severely degrades signal quality and hin…

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Engineering Preprint PDF DOI

Minimax Optimal Procedures for Joint Detection and Estimation

Dominik Reinhard, Michael Fau{ss}, Abdelhak M. Zoubir · 2026

We investigate the problem of jointly testing a pair of composite hypotheses and, depending on the test result, estimating a random parameter under distributional uncertainties. Specifically, it is as…

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Engineering Preprint PDF DOI

When AI Meets Terahertz: A Survey on the Symbiosis of Artificial Intelligence and Terahertz Networks

Chong Han, Jingting Jiang, Zhengdong Hu, Meixia Tao, Wenjun Zhang · 2026

The Terahertz (THz) band (0.1-10 THz) has emerged as a critical frontier for future communication systems, offering ultra-wide bandwidths that enable Terabits-per-second (Tbps) wireless links and high…

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Engineering Preprint PDF DOI

Generalizable CT-Free PET Attenuation and Scatter Correction for Pediatric Patients

Jia-Mian Wu, Jun Liu, Siqi Li, Xiaoya Wang, Shibai Yin, Huanyu Luo, Lingling Zheng, Qiang Gao, Jigang Yang, Tai-Xiang Jiang · 2026

Computed tomography (CT)-based attenuation and scatter correction improves quantitative PET but adds radiation exposure that is particularly undesirable in pediatric imaging. Existing CT-free methods …

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Engineering Preprint PDF DOI

The Radon Transform, True Time Delay Beamforming, and Ultra-Wideband Antenna Arrays (Invited Paper)

Tyler Ikehara, Ibrahim Pehlivan, Danijela Cabric, Thomas L. Marzetta · 2026

The FR3 band has emerged as the major focus of 6G wireless research. FR3 cellular operation presents the challenge of extreme bandwidth combined with physically large antenna arrays. In this regime, c…

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Engineering Preprint PDF DOI

Optimal Multispectral Imaging using RGB Cameras

Tomislav Matulic, Ivan Skrabo, Dubravko Babic, Damir Sersic · 2026

We present a physics-driven framework for accurate evaluation of discrete spectral bands using a low-cost multispectral setup built from off-the-shelf RGB cameras and narrow multi-band optical filters…

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Engineering Preprint PDF DOI

ExplainS2A: Explainable Spectral-Spatial Duality Model for Fast Transforming Sentinel-2 Image to AVIRIS-Level Hyperspectral Image

Chia-Hsiang Lin, Zi-Chao Leng · 2026

Mainstream optical satellites often acquire multispectral multi-resolution images, which have limited material identifiability compared to the HSIs. Thus, spectrally super-resolving the MSI into their…

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Engineering Preprint PDF DOI

Maritime Connectivity Vulnerability Index: Construction, Patterns, and Validation Across 185 Economies, 2006-2025

Mohamed Bouka, Moulaye Abdel Kader Moulaye Ismail · 2026

Recent disruptions at major maritime chokepoints have exposed the structural fragility of liner shipping networks. Existing indicators measure connectivity, but none quantify its structural vulnerabil…

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Engineering Preprint PDF DOI

Joint Scheduling of Multi-Band Radar Sensing and DNN Inference for Cross-Stage Parallelism

Yanan Du, Sai Xu, Kezhi Wang, Yansha Deng · 2026

This paper studies end-to-end latency minimization for a multi-band radar sensing and deep neural network (DNN) inference pipeline. Unlike conventional stage-wise designs that treat radar sensing and …

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Engineering Preprint PDF DOI

Far-Field Absolute Gain Antenna Measurements at Sub-THz Frequencies: A New Interpretation

Asad Husein, Kimmo Rasilainen, Juha-Pekka Makela, Veikko Hovinen, Klaus Nevala, Aarno Parssinen, Marko E. Leinonen · 2026

The evolution of large aperture antennas and arrays at the sub-THz band (100-300 GHz) results in traditional far-field (FF) gain measurements to require large distances due to the high frequency natur…

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Engineering Preprint PDF DOI

User Mobility Demands Near-Field Communications in Terahertz Band Wireless Networks Beyond 6G

Peng Zhang, Vitaly Petrov, Arjun Singh, Emil Bjornson, Josep Miquel Jornet · 2026

Near-field propagation is often unavoidable at terahertz (THz) frequencies due to the large apertures needed for sufficient array gain, yet near-field operation complicates practical system design, es…

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Engineering Preprint PDF DOI

A Novel CSI-RS Reporting Scheme for RIS Optimization in O-RAN-based NextG Networks

Ali Fuat Sahin, Sefa Kayraklik, Ali Gorcin, Ibrahim Hokelek, Ertugrul Basar, Halim Yanikomeroglu · 2026

Reconfigurable intelligent surface (RIS) technology is a promising enabler for next-generation (NextG) wireless systems, capable of dynamically shaping the propagation environment. Integrating RIS wit…

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Engineering Preprint PDF DOI

Symbol-Level Mask-Compliant Hybrid Precoding for Multi-User MIMO-OFDM Systems

Navid Reyhanian, Parisa Ramezani, Emil Bjornson · 2026

Millimeter-wave (mmWave) technology is a crucial enabler for next-generation networks because it offers substantially greater available bandwidth. mmWave multiple-input multiple-output (MIMO) systems …

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Engineering Preprint PDF DOI

Optimally Bridging Semantics and Data: Generative Semantic Communication via Schr\"odinger Bridge

Dahua Gao, Ruichao Liu, Minxi Yang, Shuai Ma, Youlong Wu, Guangming Shi · 2026

Generative Semantic Communication (GSC) is a promising solution for image transmission over narrow-band and high-noise channels. However, existing GSC methods rely on long, indirect transport trajecto…

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Engineering Preprint PDF DOI

FARM: Foundational Aerial Radio Map for Intelligent Low-Altitude Networking

Shijian Gao, Jiahui Liang, Yifeng Yuan, Wenlihan Lu, Guobin Shen, Liuqing Yang · 2026

Precise aerial radio environment characterization is vital for low-altitude planning. However, existing datasets and estimation methods lack the high-resolution granularity required for complex aerial…

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Engineering Preprint PDF DOI

E2E-WAVE: End-to-End Learned Waveform Generation for Underwater Video Multicasting

Khizar Anjum, Tingcong Jiang, Dario Pompili · 2026

We present E2E-WAVE, the first end-to-end learned waveform generation system for underwater video multicasting. Acoustic channels exhibit 20--46% bit error rates where forward error correction becomes…

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Engineering Preprint PDF DOI

Measurement-Based Massive MIMO Channel Characterization and Performance Evaluation at FR3 (8 and 15 GHz) Under Equal Physical Aperture

Enrui Liu, Pan Tang, Haiyang Miao, Qi Zhen, Jianhua Zhang · 2026

With the push toward 6G commercialization, Frequency Range 3 (FR3) bands, specifically 7.125-8.4 GHz and 14.8-15.3 GHz, have become focal points for achieving wide-area, high-capacity coverage. Howeve…

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