6 papers
Fully Asynchronous Unsourced Random Access over Fading Channels
Mert Ozates, Mohammad Kazemi, Gianluigi Liva +1
We examine unsourced random access in a fully asynchronous setup, where active users transmit their data without restriction on the start time over a fading channel. In the propose…
Communication via Sensing
Mohammad Kazemi, Tolga M. Duman, Deniz Gündüz
We present an alternative take on the recently popularized concept of `\textit{joint sensing and communications}', which focuses on using communication resources also for sensing.…
A Fully Asynchronous Unsourced Random Access Scheme
Mert Ozates, Mohammad Kazemi, Gianluigi Liva +1
We investigate fully asynchronous unsourced random access (URA), and propose a high-performing scheme that employs on-off division multiple access (ODMA). In this scheme, active us…
Characterization of Deletion/Substitution Channel Capacity for Small Deletion and Substitution Probabilities
Mohammad Kazemi, Tolga M. Duman
We consider binary input deletion/substitution channels, which model certain types of synchronization errors encountered in practice. Specifically, we focus on the regime of small…
Update Estimation and Scheduling for Over-the-Air Federated Learning with Energy Harvesting Devices
Furkan Bagci, Busra Tegin, Mohammad Kazemi +1
We study over-the-air (OTA) federated learning (FL) for energy harvesting devices with heterogeneous data distribution over wireless fading multiple access channel (MAC). To addres…
ODMA-Based Cell-Free Unsourced Random Access with Successive Interference Cancellation
Mert Ozates, Mohammad Kazemi, Eduard Jorswieck +1
We consider the unsourced random access problem with multiple receivers and propose a cell-free type solution for that. In our proposed scheme, the active users transmit their sign…