activity
20052026
most citedComplex Random Vectors and ICA Models: Identifiability, Uniqueness and Separability

171 citations · 573 across the 38 of their papers we have counts for

collaborators

43 papers

cs.NI2026

Unified Evaluation Methodology for AI-Native Integrated Sensing and Communication

Filip Lemic, Andra Blaga, Francesco Devoti +24

Integrated Sensing and Communication (ISAC) couples radio sensing, data transmission, and control actions within a single closed-loop system. When Artificial Intelligence (AI)-driv…

eess.SP2026★ 29 cited

Sparse Sensor Arrays for Active Sensing: Models, Configurations and Applications

Robin Rajamäki, Visa Koivunen

This chapter focuses on active sensing using sparse arrays. In active sensing applications, such as radar, sonar, wireless communications, and medical ultrasound, a collection of s…

eess.SP2025

DoA Estimation with Sparse Arrays: Effects of Antenna Element Patterns and Nonidealities

Niko Lindvall, Mikko Heino, Robin Rajamäki +2

This paper studies the effects of directional antenna element complex gain patterns and nonidealities in direction of arrival (DoA) estimation. We compare sparse arrays and classic…

eess.SP2025

Beyond-Diagonal RIS: Adversarial Channels and Optimality of Low-Complexity Architectures

Atso Iivanainen, Robin Rajamäki, Visa Koivunen

Beyond-diagonal reconfigurable intelligent surfaces (BD-RISs) have recently gained attention as an enhancement to conventional RISs. BD-RISs allow optimizing not only the phase, bu…

eess.SP2024

Generative Deep Synthesis of MIMO Sensing Waveforms with Desired Transmit Beampattern

Vesa Saarinen, Robin Rajamäki, Visa Koivunen

This paper develops a generative deep learning model for the synthesis of multiple-input multiple-output (MIMO) active sensing waveforms with desired properties, including constant…

eess.SP2024

Multicarrier ISAC: Advances in Waveform Design, Signal Processing and Learning under Non-Idealities

Visa Koivunen, Musa Furkan Keskin, Henk Wymeersch +2

This paper addresses the topic of integrated sensing and communications (ISAC) in 5G and emerging 6G wireless networks. ISAC systems operate within shared, congested or even contes…