8 citations · 12 across the 4 of their papers we have counts for
6 papers · 1 filter
How to Coordinate Edge Devices for Over-the-Air Federated Learning?
Mohammad Ali Sedaghat, Ali Bereyhi, Saba Asaad +1
This work studies the task of device coordination in wireless networks for over-the-air federated learning (OTA-FL). For conventional metrics of aggregation error, the task is show…
GLSE Precoders for Massive MIMO Systems: Analysis and Applications
Ali Bereyhi, Mohammad Ali Sedaghat, Ralf R. Müller +1
This paper proposes the class of Generalized Least-Square-Error (GLSE) precoders for multiuser massive MIMO systems. For a generic transmit constellation, GLSE precoders minimize t…
RLS Recovery with Asymmetric Penalty: Fundamental Limits and Algorithmic Approaches
Ali Bereyhi, Mohammad Ali Sedaghat, Ralf R. Müller
This paper studies regularized least square recovery of signals whose samples' prior distributions are nonidentical, e.g., signals with time-variant sparsity. For this model, Bayes…
Precoding via Approximate Message Passing with Instantaneous Signal Constraints
Ali Bereyhi, Mohammad Ali Sedaghat, Ralf R. Müller
This paper proposes a low complexity precoding algorithm based on the recently proposed Generalized Least Square Error (GLSE) scheme with generic penalty and support. The algorithm…
On User Pairing in NOMA Uplink
Mohammad A. Sedaghat, Ralf R. Müller
User pairing in Non-Orthogonal Multiple-Access (NOMA) uplink based on channel state information is investigated considering some predefined power allocation schemes. The base stati…
Asymptotics of Nonlinear LSE Precoders with Applications to Transmit Antenna Selection
Ali Bereyhi, Mohammad Ali Sedaghat, Ralf R. Müller
This paper studies the large-system performance of Least Square Error (LSE) precoders which~minimize~the~input-output distortion over an arbitrary support subject to a general pena…