7 papers · 1 filter
Near-Field Signal Processing: Unleashing the Power of Proximity
Ahmet M. Elbir, Özlem Tuğfe Demir, Kumar Vijay Mishra +2
After nearly a century of specialized applications in optics, remote sensing, and acoustics, the near-field (NF) electromagnetic propagation zone is experiencing a resurgence in re…
The Curse of Beam-Squint in ISAC: Causes, Implications, and Mitigation Strategies
Ahmet M. Elbir, Kumar Vijay Mishra, Abdulkadir Celik +1
Integrated sensing and communications (ISAC) has emerged as a means to efficiently utilize spectrum and thereby save cost and power. At the higher end of the spectrum, ISAC systems…
Beyond Diagonal RIS: Key to Next-Generation Integrated Sensing and Communications?
Tara Esmaeilbeig, Kumar Vijay Mishra, Mojtaba Soltanalian
Reconfigurable intelligent surface (RIS) have introduced unprecedented flexibility and adaptability toward smart wireless channels. Recent research on integrated sensing and commun…
Spherical Wavefront Near-Field DoA Estimation in THz Automotive Radar
Ahmet M. Elbir, Kumar Vijay Mishra, Symeon Chatzinotas
Automotive radar at terahertz (THz) band has the potential to provide compact design. The availability of wide bandwidth at THz-band leads to high range resolution. Further, very n…
Submodular Optimization for Placement of Intelligent Reflecting Surfaces in Sensing Systems
Zahra Esmaeilbeig, Kumar Vijay Mishra, Arian Eamaz +1
Intelligent reflecting surfaces (IRS) and their optimal deployment are the new technological frontier in sensing applications. Recently, IRS have demonstrated potential in advancin…
Terahertz-Band Direction Finding With Beam-Split and Mutual Coupling Calibration
Ahmet M. Elbir, Kumar Vijay Mishra, Symeon Chatzinotas
Terahertz (THz) band is currently envisioned as the key building block to achieving the future sixth generation (6G) wireless systems. The ultra-wide bandwidth and very narrow beam…