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Engineering Preprint PDF DOI

A Novel Piecewise Atmospheric Attenuation Model for Free Space Optical Links in Vertical Heterogeneous Networks

Eylem Erdogan, Mohammed Elamassie, Ibrahim Altunbas, Gunes Karabulut Kurt, Murat Uysal, Halim Yanikomeroglu ยท 2026

Free-space optical (FSO) communication is emerging as a key backhaul technology for next-generation vertical heterogeneous networks (VHetNets), whose architecture spans satellites, high-altitude platfโ€ฆ

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Engineering Preprint PDF DOI

Cram\'{e}r-Rao Bound Optimization for Near-Field ISAC with Extended Targets

Zongyao Zhao, Zhaolin Wang, Lincong Han, Liang Xu, Jing Jin, Yuanwei Liu, Kaibin Huang ยท 2026

Near-field integrated sensing and communication (ISAC) requires target models beyond the point-target abstraction when the target has a non-negligible spatial extent. In this letter, a geometry-aware โ€ฆ

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Engineering Preprint PDF DOI

Geometry-Aware Networking for Low-Altitude Economy: Movable Antennas in Space-Air-Ground Integrated Systems

Heyou Liu, Bang Huang, Mohamed-Slim Alouini ยท 2026

Space--air--ground integrated networks (SAGINs) are emerging as a key foundation for future non-terrestrial networks (NTNs) and low-altitude economy services. However, their performance is increasinglโ€ฆ

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Engineering Preprint PDF DOI

Informativity of Data-Knowledge Pairs for Lyapunov Equations

Ikumi Banno ยท 2026

In the past few years, data informativity with prior knowledge has attracted increasing attention. This line of research aims to characterize a dataset on a dynamical system that enables system analysโ€ฆ

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Engineering Preprint PDF DOI

Frugal Geofencing via Energy-aware Sensing and Reporting

David E. Ruiz-Guirola, Miltiadis Filippou, Onel A. Lopez ยท 2026

Timely and accurate monitoring in geofencing scenarios is challenging when relying on ultra-low power Internet of Things devices (IoTDs) powered by energy harvesting (EH). This is mainly because frequโ€ฆ

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Engineering Preprint PDF DOI

Leader-Follower Formation Control Using Differential Drag and Effective Surface Regulation

Alessio Bocci, Jose Juan Corona-Sanchez, Raymond Kristiansen ยท 2026

The growing interest in space activities has led to the emergence of new space operators and innovative mission concepts. Small satellites such as CubeSats reduce mission costs and are typically deploโ€ฆ

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Engineering Preprint PDF DOI

Semi-Blind Receivers for RIS-Aided Fluid Antenna Systems

Josue V. de Araujo, Gilderlan T. de Araujo, Andre L. F. de Almeida ยท 2026

Reconfigurable intelligent surfaces (RISs) and fluid antennas (FAs) are key technologies for enhancing spatial degrees of freedom in future wireless networks. However, channel acquisition in RIS-aidedโ€ฆ

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Engineering Preprint PDF DOI

Chatting about Conditional Trajectory Prediction

Yuxiang Zhao, Wei Huang, Haipeng Zeng, Huan Zhao, Yujie Song ยท 2026

Human behavior has the nature of mutual dependencies, which requires human-robot interactive systems to predict surrounding agents trajectories by modeling complex social interactions, avoiding collisโ€ฆ

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Engineering Preprint PDF DOI

NIM4-ASR: Towards Efficient, Robust, and Customizable Real-Time LLM-Based ASR

Yuan Xie, Jiaqi Song, Guang Qiu, Xianliang Wang, Kai Qiao, Junfeng Yuan, Shengqing Liu, Yi Zhang, Bowen Chen, Ming Lei, Jie Gao, Jie Wu ยท 2026

Integrating large language models (LLMs) into automatic speech recognition (ASR) has become a mainstream paradigm in recent years. Although existing LLM-based ASR models demonstrate impressive performโ€ฆ

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Engineering Preprint PDF DOI

Muscle-inspired magnetic actuators that push, pull, crawl, and grasp

Muhammad Bilal Khan, Florian Hofmann, Kilian Schafer, Matthias Lutzi, Oliver Gutfleisch ยท 2026

Functional magnetic composites capable of large deformation, load bearing, and multifunctional motion are essential for next-generation adaptive soft robots. Here, we present muscle-inspired magnetic โ€ฆ

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Engineering Preprint PDF DOI

Low-Complexity Tone Injection via Candidate Ranking for PAPR Reduction in OFDM and AFDM Systems

Yupeng Zheng, Ang Li, Jinfei Wang, Yi Ma, Rahim Tafazolli ยท 2026

Tone injection (TI) is a promising distortionless PAPR reduction technique that incurs no spectral efficiency loss. However, state-of-the-art TI schemes based on random candidate generation or clippinโ€ฆ

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Joint Detection and Velocity Estimation in OFDM-ISAC Cell-Free Massive MIMO Networks

Maryam Darabi, Sergi Liesegang, Emanuele Grossi, Stefano Buzzi ยท 2026

This paper develops a Doppler-aware sensing framework for cell-free massive MIMO (CF-mMIMO) networks operating under OFDM-based integrated sensing and communication (ISAC). The framework explicitly inโ€ฆ

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EvoMarket: A High-Fidelity and Scalable Financial Market Simulator

Muyao Zhong, Zhenhua Yang, Yuxiang Liu, Ke Tang, Peng Yang ยท 2026

High-fidelity, scalable market simulation is a key instrument for mechanism evaluation, stress testing, and counterfactual policy analysis. Yet existing simulators rarely achieve \emph{mechanism fidelโ€ฆ

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

Peng Zhang, Vitaly Petrov, Arjun Singh, Emil Bjornson, Josep Miquel Jornet ยท 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, esโ€ฆ

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Paradigm Shift from Statistical Channel Modeling to Digital Twin Prediction: An Environment-Generalizable ChannelLM for 6G AI-enabled Air Interface

Yichen Cai, Yuelong Qiu, Jianhua Zhang, Li Yu, Yuxiang Zhang, Zhen Zhang, Guangyi Liu ยท 2026

As 6G advances, ubiquitous connectivity and higher capacity requirements of the air interface pose substantial challenges for accurate and real-time wireless channel acquisition in diverse environmentโ€ฆ

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Matrix-Free 3D SIMP Topology Optimization with Fused Gather-GEMM-Scatter Kernels

Shaoliang Yang, Jun Wang, Yunsheng Wang ยท 2026

The matrix-free gather-batched-GEMM-scatter pattern eliminates global stiffness assembly for three-dimensional SIMP topology optimization, but the conventional three-stage implementation forces avoidaโ€ฆ

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Unmasking the Illusion of Embodied Reasoning in Vision-Language-Action Models

Haiweng Xu, Sipeng Zheng, Hao Luo, Wanpeng Zhang, Ziheng Xi, Zongqing Lu ยท 2026

Recent Vision-Language-Action (VLA) models report impressive success rates on standard robotic benchmarks, fueling optimism about general-purpose physical intelligence. However, recent evidence suggesโ€ฆ

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EcoTIM: Fuel-saving multi-brand tillage with ISO 11783 TIM

Ruben Hefele, Timo Oksanen ยท 2026

Tillage operations account for a large share of on-farm diesel consumption, yet the fuel efficiency of the combined tractor-implement system is not optimised in current practice. Modern continuously vโ€ฆ

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Engineering Preprint PDF DOI

MINT-Bench: A Comprehensive Multilingual Benchmark for Instruction-Following Text-to-Speech

Huakang Chen, Jingbin Hu, Liumeng Xue, Qirui Zhan, Wenhao Li, Guobin Ma, Hanke Xie, Dake Guo, Linhan Ma, Yuepeng Jiang, Bengu Wu, Pengyuan Xie, Chuan Xie, Qiang Zhang, Lei Xie ยท 2026

Instruction-following text-to-speech (TTS) has emerged as an important capability for controllable and expressive speech generation, yet its evaluation remains underdeveloped due to limited benchmark โ€ฆ

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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 ยท 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 witโ€ฆ

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