activity
20182025
most citedThe Capacity of Single-Server Weakly-Private Information Retrieval

2 citations · 2 across the 5 of their papers we have counts for

collaborators

8 papers

cs.CR2025

Detect \& Score: Privacy-Preserving Misbehaviour Detection and Contribution Evaluation in Federated Learning

Marvin Xhemrishi, Alexandre Graell i Amat, Balázs Pejó

Federated learning with secure aggregation enables private and collaborative learning from decentralised data without leaking sensitive client information. However, secure aggregat…

cs.IT2022

Improving the Thresholds of Generalized LDPC Codes with Convolutional Code Constraints

Muhammad Umar Farooq, Michael Lentmaier, Alexandre Graell i Amat

CC-GLPDC codes are a class of generalized low-density parity-check (GLDPC) codes where the constraint nodes (CNs) represent convolutional codes. This allows for efficient decoding…

cs.IT2022

Finite-Length Scaling of SC-LDPC Codes With a Limited Number of Decoding Iterations

Roman Sokolovskii, Alexandre Graell i Amat, Fredrik Brännström

We propose four finite-length scaling laws to predict the frame error rate (FER) performance of spatially-coupled low-density parity-check codes under full belief propagation (BP)…

cs.IT2021

Autoencoder-Based Unequal Error Protection Codes

Vukan Ninkovic, Dejan Vukobratovic, Christian Häger +2

We present a novel autoencoder-based approach for designing codes that provide unequal error protection (UEP) capabilities. The proposed design is based on a generalization of an a…

cs.IT2020

Pruning and Quantizing Neural Belief Propagation Decoders

Andreas Buchberger, Christian Häger, Henry D. Pfister +2

We consider near maximum-likelihood (ML) decoding of short linear block codes. In particular, we propose a novel decoding approach based on neural belief propagation (NBP) decoding…

cs.IT2020★ 2 cited

The Capacity of Single-Server Weakly-Private Information Retrieval

Hsuan-Yin Lin, Siddhartha Kumar, Eirik Rosnes +2

A private information retrieval (PIR) protocol guarantees that a user can privately retrieve files stored in a database without revealing any information about the identity of the…

cs.IT2019

Binary Message Passing Decoding of Product-like Codes

Alireza Sheikh, Alexandre Graell i Amat, Gianluigi Liva

We propose a novel binary message passing decoding algorithm for product-like codes based on bounded distance decoding (BDD) of the component codes. The algorithm, dubbed iterative…

cs.IT2018

Finite Length Analysis of Irregular Repetition Slotted ALOHA in the Waterfall Region

Alexandre Graell i Amat, Gianluigi Liva

A finite length analysis is introduced for irregular repetition slotted ALOHA (IRSA) that enables to accurately estimate its performance in the moderate-to-high packet loss probabi…