374 citations · 818 across the 73 of their papers we have counts for
10 papers · 1 filter
PAC codes with Bounded-Complexity Sequential Decoding: Pareto Distribution and Code Design
Mohsen Moradi, Hessam Mahdavifar
Recently, a novel variation of polar codes known as polarization-adjusted convolutional (PAC) codes has been introduced by Arıkan. These codes significantly outperform conventional…
A New Metric Function for SC-based Polar Decoders: Polarization, Pruning, and Fast Decoders
Mohsen Moradi, Hessam Mahdavifar
In this paper, we propose a method to obtain the optimal metric function at each depth of the polarization tree through a process we call polarization of the metric function. This…
Decoding Analog Subspace Codes: Algorithms for Character-Polynomial Codes
Samin Riasat, Hessam Mahdavifar
We propose efficient minimum-distance decoding and list-decoding algorithms for a certain class of analog subspace codes, referred to as character-polynomial (CP) codes, recently i…
Subspace Coding for Spatial Sensing
Hessam Mahdavifar, Robin Rajamäki, Piya Pal
A subspace code is defined as a collection of subspaces of an ambient vector space, where each information-encoding codeword is a subspace. This paper studies a class of spatial se…
Finite-Length Analysis of Polar Secrecy Codes for Wiretap Channels
Hessam Mahdavifar, Fariba Abbasi
In a classical wiretap channel setting, Alice communicates with Bob through a main communication channel, while her transmission also reaches an eavesdropper Eve through a wiretap…
DREW : Towards Robust Data Provenance by Leveraging Error-Controlled Watermarking
Mehrdad Saberi, Vinu Sankar Sadasivan, Arman Zarei +2
Identifying the origin of data is crucial for data provenance, with applications including data ownership protection, media forensics, and detecting AI-generated content. A standar…
Abelian Group Codes for Classical and Classical-Quantum Channels: One-shot and Asymptotic Rate Bounds
James Chin-Jen Pang, Sandeep Pradhan, Hessam Mahdavifar
We study the problem of transmission of information over classical and classical-quantum channels in the one-shot regime where the underlying codes are constrained to be group code…
Bounds on the Statistical Leakage-Resilience of Shamir's Secret Sharing
Utkarsh Gupta, Hessam Mahdavifar
Secret sharing is an instrumental tool for sharing secret keys in distributed systems. In a classical threshold setting, this involves a dealer who has a secret/key, a set of parti…
Projective Systematic Authentication via Reed-Muller Codes
Hsuan-Po Liu, Hessam Mahdavifar
In this paper, we study the problem of constructing projective systematic authentication schemes based on binary linear codes. In systematic authentication, a tag for authenticatio…
High-Rate Fair-Density Parity-Check Codes
Hessam Mahdavifar
We introduce fair-density parity-check (FDPC) codes targeting high-rate applications. In particular, we start with a base parity-check matrix of dimension $2 \sqrt{n} \times…