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Distributed Time-Varying Stochastic Optimization and Utility-Based Communication
Andrea Simonetto, Leon Kester, Geert Leus
We devise a distributed asynchronous stochastic epsilon-gradient-based algorithm to enable a network of computing and communicating nodes to solve a constrained discrete-time time-…
Limited Feedback Hybrid Precoding for Multi-User Millimeter Wave Systems
Ahmed Alkhateeb, Geert Leus, Robert W. Heath
Antenna arrays will be an important ingredient in millimeter wave (mmWave) cellular systems. A natural application of antenna arrays is simultaneous transmission to multiple users.…
Compressive Periodogram Reconstruction Using Uniform Binning
Dyonisius Dony Ariananda, Daniel Romero, Geert Leus
In this paper, two problems that show great similarities are examined. The first problem is the reconstruction of the angular-domain periodogram from spatial-domain signals receive…
Cooperative Compressive Power Spectrum Estimation
Dyonisius Dony Ariananda, Daniel Romero, Geert Leus
We examine power spectrum estimation from wide-sense stationary signals received at different wireless sensors. We organize multiple sensors into several groups, where each group e…
Cramer Rao Lower Bound for Underwater Range Estimation with Noisy Sound Speed Profile
Hamid Ramezani, Raj Thilak Rajan, Geert Leus
In this paper, the Cramer Rao bound (CRB) for range estimation between two underwater nodes is calculated under a Gaussian noise assumption on the measurements. The nodes can measu…
Compressive Joint Angular-Frequency Power Spectrum Estimation
Dyonisius Dony Ariananda, Geert Leus
We introduce a new compressive power spectrum estimation approach in both frequency and direction of arrival (DOA). Wide-sense stationary signals produced by multiple uncorrelated…