395 citations · 1.1k across the 45 of their papers we have counts for
5 papers · 1 filter
Raptor Codes in the Low SNR Regime
Mahyar Shirvanimoghaddam, Sarah J. Johnson
In this paper, we revisit the design of Raptor codes for binary input additive white Gaussian noise (BIAWGN) channels, where we are interested in very low signal to noise ratios (S…
Repeat-Accumulate Codes for Reconciliation in Continuous Variable Quantum Key Distribution
Sarah J. Johnson, Vikram A. Chandrasetty, Andrew M. Lance
This paper investigates the design of low-complexity error correction codes for the verification step in continuous variable quantum key distribution (CVQKD) systems. We design new…
A Unified Scheme for Two-Receiver Broadcast Channels with Receiver Message Side Information
Behzad Asadi, Lawrence Ong, Sarah J. Johnson
This paper investigates the capacity regions of two-receiver broadcast channels where each receiver (i) has both common and private-message requests, and (ii) knows part of the pri…
A New Index Coding Scheme Exploiting Interlinked Cycles
Chandra Thapa, Lawrence Ong, Sarah J. Johnson
We study the index coding problem in the unicast message setting, i.e., where each message is requested by one unique receiver. This problem can be modeled by a directed graph. We…
Generalized Interlinked Cycle Cover for Index Coding
Chandra Thapa, Lawrence Ong, Sarah J. Johnson
A source coding problem over a noiseless broadcast channel where the source is pre-informed about the contents of the cache of all receivers, is an index coding problem. Furthermor…