76 citations · 139 across the 23 of their papers we have counts for
27 papers
Capacity Bounds for the Poisson-Repeat Channel
Mohammad Kazemi, Tolga M. Duman
We develop bounds on the capacity of Poisson-repeat channels (PRCs) for which each input bit is independently repeated according to a Poisson distribution. The upper bounds are obt…
Channels with Markov Synchronization Errors: Information Stability and Capacity Bounds
Ruslan Morozov, Tolga M. Duman
Particularly motivated by DNA storage channels, we consider channels with synchronization errors modeled as insertions and deletions, along with substitutions. We focus on the case…
Unsourced Random Access Using Multiple Stages of Orthogonal Pilots: MIMO and Single-Antenna Structures
Mohammad Javad Ahmadi, Mohammad Kazemi, Tolga M. Duman
We study the problem of unsourced random access (URA) over Rayleigh block-fading channels with a receiver equipped with multiple antennas. We propose a slotted structure with multi…
Reliable Extraction of Semantic Information and Rate of Innovation Estimation for Graph Signals
Mert Kalfa, Sadik Yagiz Yetim, Arda Atalik +6
Semantic signal processing and communications are poised to play a central part in developing the next generation of sensor devices and networks. A crucial component of a semantic…
Over-the-Air Federated Edge Learning with Hierarchical Clustering
Ozan Aygün, Mohammad Kazemi, Deniz Gündüz +1
We examine federated learning (FL) with over-the-air (OTA) aggregation, where mobile users (MUs) aim to reach a consensus on a global model with the help of a parameter server (PS)…
Over-the-Air Federated Learning with Energy Harvesting Devices
Ozan Aygün, Mohammad Kazemi, Deniz Gündüz +1
We consider federated edge learning (FEEL) among mobile devices that harvest the required energy from their surroundings, and share their updates with the parameter server (PS) thr…