3 papers
cs.LG2026
Causal Discovery in Equal Variance Linear Gaussian DAGs via SURE-Tuned Ridge Regression
Sambit Mishra, Urbashi Mitra
Recovering the directed acyclic graph (DAG) of a structural equation model (SEM) from observational data is a central problem in causal discovery. The iterative gradient descent an…
eess.SP2025
RIS-Assisted Noncoherent Wireless System: Error Analysis with Optimal Receiver and Multi-level ASK
Sambit Mishra, Soumya P. Dash
This paper considers a reconfigurable intelligent surface (RIS) aided wireless communication system where the transmitter employs one-sided amplitude-shift keying (ASK) for data mo…
cs.IT2024
Optimal Multi-Level ASK Modulations for RIS-Assisted Communications with Energy-Based Noncoherent Reception
Sambit Mishra, Soumya P. Dash, George C. Alexandropoulos
This paper investigates the performance of one- and two-sided amplitude shift keying (ASK) modulations in noncoherent single-input single-output (SISO) wireless communication syste…