Search Results for author: Saeed Razavikia

Found 8 papers, 1 papers with code

Harmonic Retrieval Using Weighted Lifted-Structure Low-Rank Matrix Completion

no code implementations8 Nov 2023 Mohammad Bokaei, Saeed Razavikia, Stefano Rini, Arash Amini, Hamid Behrouzi

In this paper, we investigate the problem of recovering the frequency components of a mixture of $K$ complex sinusoids from a random subset of $N$ equally-spaced time-domain samples.

Low-Rank Matrix Completion Retrieval

Blind Federated Learning via Over-the-Air q-QAM

no code implementations7 Nov 2023 Saeed Razavikia, José Mairton Barros Da Silva Júnior, Carlo Fischione

Indeed, we propose a new federated edge learning framework in which edge devices use digital modulation for over-the-air uplink transmission to the edge server while they have no access to the channel state information.

Federated Learning

ChannelComp: A General Method for Computation by Communications

no code implementations10 Oct 2023 Saeed Razavikia, José Mairton Barros Da Silva Júnior, Carlo Fischione

However, when we use digital modulations for AirComp, a general belief is that the superposition property of the radio waves returns a meaningless overlapping of the digital signals.

Optimal Receive Filter Design for Misaligned Over-the-Air Computation

1 code implementation27 Sep 2023 Henrik Hellström, Saeed Razavikia, Viktoria Fodor, Carlo Fischione

The fundamental idea of OAC is to exploit signal superposition to compute functions of multiple simultaneously transmitted signals.

Blind Asynchronous Goal-Oriented Detection for Massive Connectivity

no code implementations21 Jun 2023 Sajad Daei, Saeed Razavikia, Marios Kountouris, Mikael Skoglund, Gabor Fodor, Carlo Fischione

Resource allocation and multiple access schemes are instrumental for the success of communication networks, which facilitate seamless wireless connectivity among a growing population of uncoordinated and non-synchronized users.

Computing Functions Over-the-Air Using Digital Modulations

no code implementations1 Mar 2023 Saeed Razavikia, Jose Mairton Barros da Silva Jr, Carlo Fischione

Over-the-air computation (AirComp) is a known technique in which wireless devices transmit values by analog amplitude modulation so that a function of these values is computed over the communication channel at a common receiver.

Blind Asynchronous Over-the-Air Federated Edge Learning

no code implementations31 Oct 2022 Saeed Razavikia, Jaume Anguera Peris, Jose Mairton B. da Silva Jr, Carlo Fischione

Federated Edge Learning (FEEL) is a distributed machine learning technique where each device contributes to training a global inference model by independently performing local computations with their data.

Two-snapshot DOA Estimation via Hankel-structured Matrix Completion

no code implementations21 Feb 2022 Mohammad Bokaei, Saeed Razavikia, Arash Amini, Stefano Rini

In this paper, we study the problem of estimating the direction of arrival (DOA) using a sparsely sampled uniform linear array (ULA).

Matrix Completion Vocal Bursts Valence Prediction

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