374 citations · 818 across the 73 of their papers we have counts for
8 papers · 1 filter
The Most Informative Bit and Beyond: A Proof of the Courtade--Kumar Conjecture and Multibit Extensions
Hessam Mahdavifar, Ahmad Beirami
Let \(X=(X_1,\ldots,X_n)\) be uniform on the Boolean cube, and let \(Y\) be obtained by passing its coordinates independently through a binary symmetric channel with crossover prob…
Quantum LDPC and High-Rate CSS Codes from Fair-Density Parity-Check Codes
Hessam Mahdavifar
We construct quantum LDPC (qLDPC) and high-rate CSS codes from our recently introduced classical fair-density parity-check (FDPC) codes. To this end, we introduce a structured spar…
Multi-Tag Collision Recovery in UHF-RFID Using Self-Attention Decoding
Talha Akyildiz, Siva Aditya Gooty, Hessam Mahdavifar +1
Passive ultra high frequency (UHF) radio frequency identification (RFID) enables battery-free tags to communicate with a reader through backscatter. When multiple tags respond in t…
Univariate Bicycle Quantum LDPC Codes: Explicit Logical Structure and Distance Bounds
Sheida Rabeti, Hessam Mahdavifar
We introduce univariate bicycle (UB) codes, a structured subclass of generalized bicycle (GB) quantum low-density parity-check (LDPC) codes obtained via a Frobenius relation. This…
Multiple-Bases Belief Propagation List Decoding for Quantum LDPC Codes
Sheida Rabeti, Hessam Mahdavifar
In this paper, we propose a belief-propagation (BP)-based decoder, termed the Multiple-Bases Belief-Propagation List Decoder (MBBP-LD), for quantum low-density parity-check (QLDPC)…
Cost-Aware Neural Early Stopping for Local Constraint OSD Decoders
Talha Akyildiz, Hessam Mahdavifar
Local constraint ordered statistics decoding (LC-OSD) provides strong soft decision performance for short block length linear codes, but its practical cost is dominated by the numb…
Multibeam Phased Arrays with Spherical Gold Spatio-temporal Coding for Fading-Resilient and Delay Robust Beam Isolations
Yuan Ma, Mike Ballou, Kyle Richard +2
Future integrated sensing and communication (ISAC) systems require simultaneous multibeam operation with low-latency hardware and robust isolation under synchronization error and f…
Covering in Hamming and Grassmann Spaces: New Bounds and Reed--Solomon-Based Constructions
Samin Riasat, Hessam Mahdavifar
We study covering problems in Hamming and Grassmann spaces through a unified coding-theoretic and information-theoretic framework. Viewing covering as a form of quantization in gen…