7 papers
GLRT for Reconfigurable Intelligent Surface aided Spectrum Sensing
Nikhilsingh Parihar, Praful Mankar, Sachin Chaudhari
Spectrum sensing (SS) is crucial for realising cognitive radio networks, where the secondary user (SU) needs to detect the presence of a primary user (PU) in order to utilise the s…
Near-field Wideband Multi-User Localization using NFMR-Net
Pearl Hetul Shah, Srikar Sharma Sadhu, Praful D. Mankar
This paper proposes a deep learning based method for wideband near-field multi-user localization. In particular, the proposed approach utilizes the Zadoff-Chu (ZC) sequence based p…
Near-field Anchor-free Localization using Reconfigurable Intelligent Surfaces
Srikar Sharma Sadhu, Praful D. Mankar, Santosh Nannuru
Near-field localization is expected to play a crucial role in enabling a plethora of applications under the paradigm of 6G networks. The conventional localization methods rely on c…
Time-Frequency Pilot Sequence Design and LoS Delay-Doppler Estimation
Aadarsh Devanand, Praful D. Mankar
We present a novel framework for line-of-sight (LoS) delay-Doppler (DD) estimation in dense scattering propagation environments. We present two time-frequency (TF) domain pilot seq…
Detection of Number of Subcarriers of OFDM Systems using Eigen-Spectral Analysis
Vishnu Priya Chekuru, Ganapathiraju S S Ananya Varma, Arti Yardi +1
Orthogonal Frequency-Division Multiplexing (OFDM) is widely used in modern wireless communication systems due to its robustness against time-dispersive channels. In this work, we c…
Capacity Analysis of Cascaded BD-RIS Assisted MIMO Systems
M. S. S. Manasa, Praful D. Mankar, Sundaram Vanka
This paper examines the cascaded deployment of beyond diagonal (BD) reconfigurable intelligent surfaces (RISs) and explores its potential to enhance the performance of MIMO systems…