6 papers
Efficient Low-Memory Fast Stack Decoding with Variance Polarization for PAC Codes
Mohsen Moradi, Hessam Mahdavifar
Polarization-adjusted convolutional (PAC) codes have recently emerged as a promising class of error-correcting codes, achieving near-capacity performance particularly in the short…
Layered Normalized Min-Sum Decoding with Bit Flipping for FDPC Codes
Niloufar Hosseinzadeh, Mohsen Moradi, Hessam Mahdavifar
Fair-density parity-check (FDPC) codes have been recently introduced demonstrating improved performance compared to low-density parity-check (LDPC) codes standardized in 5G systems…
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…
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 conventiona…
On the High-Rate FDPC Codes: Construction, Encoding, and a Generalization
Mohsen Moradi, Sheida Rabeti, Hessam Mahdavifar
Recently introduced Fair-Density Parity-Check (FDPC) codes, targeting high-rate applications, offer superior error-correction performance (ECP) compared to 5G Low-Density Parity-Ch…
Bounds and New Constructions for Girth-Constrained Regular Bipartite Graphs
Sheida Rabeti, Mohsen Moradi, Hessam Mahdavifar
In this paper, we explore the design and analysis of regular bipartite graphs motivated by their application in low-density parity-check (LDPC) codes specifically with constrained…