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🔍 alexander mitsos 📂 Engineering
Showing 205 results for "alexander mitsos" in Engineering
Engineering Preprint PDF DOI

Quantization-Aware EE Optimization and SE-EE Tradeoff for MiLAC-Aided MU-MISO Beamforming

Yuchen Zhang, Pinjun Zheng, Tareq Y. Al-Naffouri · 2026

In large antenna arrays, hardware power consumption becomes a dominant design constraint, making energy efficiency (EE) a first-class objective alongside spectral efficiency (SE). Microwave linear ana…

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Engineering Preprint PDF DOI

Two-Layer Microwave Linear Analog Computer (MiLAC)-aided Multi-user MISO Networks

Xiaohua Zhou, Tianyu Fang, Yijie Mao, Bruno Clerckx · 2026

Microwave linear analog computer (MiLAC)-aided transmit beamforming, which processes transmitted symbols entirely in the analog domain, has recently emerged as a promising alternative to fully digital…

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Engineering Preprint PDF DOI

Kill-Probability-Maximization Guidance: Breaking from the Miss-Distance-Minimization Paradigm

Liraz Mudrik, Yaakov Oshman · 2026

Classical guidance laws aim at minimizing the miss distance, thus implicitly determining the minimum warhead lethality radius required against nominal targets. However, nonnominal targets or scenarios…

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Engineering Preprint PDF DOI

Tree Search Algorithms Applied to the BD-RIS Configuration in MU-MISO Communication Systems

Pedro H. C. de Souza, Luciano Mendes · 2026

The reconfigurable intelligent surface (RIS) has attracted considerable attention of both academia and industry in recent years, given its capacity to dynamically manipulate the reflection of incident…

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Engineering Preprint PDF DOI

MC-GenRef: Annotation-free mammography microcalcification segmentation with generative posterior refinement

Hyunwoo Cho, Yeeun Kwon, Min Jung Kim, Yangmo Yoo · 2026

Microcalcification (MC) analysis is clinically important in screening mammography because clustered puncta can be an early sign of malignancy, yet dense MC segmentation remains challenging: targets ar…

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Engineering Preprint PDF DOI

Site-Specific Channel Modeling and Optimization of RIS-Assisted Multiuser MISO Systems

Ziqi Liu, Wei Yu, Sean Victor Hum · 2026

This paper presents a physics-based channel modeling and optimization framework for reconfigurable intelligent surface (RIS)-assisted downlink multi-user multiple-input single-output (MU-MISO) communi…

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Engineering Preprint PDF DOI

A Controller Synthesis Framework for Weakly-Hard Control Systems

Marc Seidel, Martina Maggio, Frank Allgower · 2026

Deadline misses are more common in real-world systems than one may expect. The weakly-hard task model has become a standard abstraction to describe and analyze how often these misses occur, and has be…

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Engineering Preprint PDF DOI

FlowCorrect: Efficient Interactive Correction of Generative Flow Policies for Robotic Manipulation

Edgar Welte, Yitian Shi, Rosa Wolf, Maximillian Gilles, Rania Rayyes · 2026

Generative manipulation policies can fail catastrophically under deployment-time distribution shift, yet many failures are near-misses: the robot reaches almost-correct poses and would succeed with a …

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Engineering Preprint PDF DOI

Robust SAC-Enabled UAV-RIS Assisted Secure MISO Systems With Untrusted EH Receivers

Hamid Reza Hashempour, Le-Nam Tran, Duy H. N. Nguyen, Hien Quoc Ngo · 2026

This paper investigates secure downlink transmission in a UAV-assisted reconfigurable intelligent surface (RIS)-enabled multiuser multiple-input single-output network, where legitimate information-har…

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Engineering Preprint PDF DOI

Channel-Aware Conditional Diffusion Model for Secure MU-MISO Communications

Tong Hui, Xiao Tang, Yichen Wang, Qinghe Du, Dusit Niyato, Zhu Han · 2026

While information securityis a fundamental requirement for wireless communications, conventional optimization based approaches often struggle with real-time implementation, and deep models, typically …

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Engineering Preprint PDF DOI

A Unified Candidate Set with Scene-Adaptive Refinement via Diffusion for End-to-End Autonomous Driving

Zhengfei Wu, Shuaixi Pan, Shuohan Chen, Shuo Yang, Yanjun Huang · 2026

End-to-end autonomous driving is increasingly adopting a multimodal planning paradigm that generates multiple trajectory candidates and selects the final plan, making candidate-set design critical. A …

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Engineering Preprint PDF DOI

Reducing End-to-End Latency of Cause-Effect Chains with Shared Cache Analysis

Yixuan Zhu, Yinkang Gao, Bo Zhang, Xiaohang Gong, Binze Jiang, Lei Gong, Wenqi Lou, Teng Wang, Chao Wang, Xi Li, Xuehai Zhou · 2026

Cause-effect chains, as a widely used modeling method in real-time embedded systems, are extensively applied in various safety-critical domains. End-to-end latency, as a key real-time attribute of cau…

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Engineering Preprint PDF DOI

Achievable Rate Optimization for Large Flexible Intelligent Metasurface Assisted Downlink MISO under Statistical CSI

Ling He, Vaibhav Kumar, Anastasios Papazafeiropoulos, Miaowen Wen, Le-Nam Tran, Marwa Chafii · 2026

The integration of electromagnetic metasurfaces into wireless communications enables intelligent control of the propagation environment. Recently, flexible intelligent metasurfaces (FIMs) have evolved…

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Engineering Preprint PDF DOI

Microwave Linear Analog Computer (MiLAC)-aided Multiuser MISO: Fundamental Limits and Beamforming Design

Zheyu Wu, Matteo Nerini, Bruno Clerckx · 2026

As wireless communication systems evolve toward the 6G era, ultra-massive/gigantic MIMO is envisioned as a key enabling technology. Recently, microwave linear analog computer (MiLAC) has emerged as a …

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Engineering Preprint PDF DOI

Robust Consensus-Based Distributed Beamforming for Wideband Cell-free Multi-RIS MISO Systems

Konstantinos D. Katsanos, George C. Alexandropoulos · 2026

The cell-free networking paradigm constitutes a revolutionary architecture for future generations of wireless networks, which has been recently considered in synergy with Reconfigurable Intelligent Su…

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Engineering Preprint PDF DOI

Joint Beamforming and Position Optimization for Movable-Antenna and Movable-Element RIS-Aided Full-Duplex 6G MISO Systems

Ayda Nodel Hokmabadi, Chadi Assi · 2026

Full-duplex communication substantially enhances spectral efficiency by enabling simultaneous transmission and reception on the same time-frequency resources. However, its practical deployment remains…

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Engineering Preprint PDF DOI

RoboReward: General-Purpose Vision-Language Reward Models for Robotics

Tony Lee, Andrew Wagenmaker, Karl Pertsch, Percy Liang, Sergey Levine, Chelsea Finn · 2026

A well-designed reward is critical for effective reinforcement learning-based policy improvement. In real-world robotics, obtaining such rewards typically requires either labor-intensive human labelin…

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Engineering Preprint PDF DOI

A Multi-Channel Auditory Signal Encoder with Adaptive Resolution Using Volatile Memristors

Dongxu Guo, Deepika Yadav, Patrick Foster, Spyros Stathopoulos, Mingyi Chen, Themis Prodromakis, Shiwei Wang · 2025

We demonstrate and experimentally validate an end-to-end hybrid CMOS-memristor auditory encoder that realises adaptive-threshold, asynchronous delta-modulation (ADM)-based spike encoding by exploiting…

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Engineering Preprint PDF DOI

Secure Analog Beamforming for Multi-user MISO Systems with Movable Antennas

Weijie Xiong, Jingran Lin, Kai Zhong, Liu Yang, Hongli Liu, Qiang Li, Cunhua Pan · 2025

Movable antennas (MAs) represent a novel approach that enables flexible adjustments to antenna positions, effectively altering the channel environment and thereby enhancing the performance of wireless…

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Engineering Preprint PDF DOI

DMA-Aided MU-MISO Systems for Power Splitting SWIPT via Lorentzian-Constrained Holography

Askin Altinoklu, Leila Musavian · 2025

This paper presents an optimal power splitting and beamforming design for co-located simultaneous wireless information and power transfer (SWIPT) users in Dynamic Metasurface Antenna (DMA)-aided multi…

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