395 citations · 1.1k across the 45 of their papers we have counts for
5 papers · 1 filter
Structural Characteristics of Two-Sender Index Coding
Chandra Thapa, Lawrence Ong, Sarah J. Johnson +1
This paper studies index coding with two senders. In this setup, source messages are distributed among the senders possibly with common messages. In addition, there are multiple re…
On the Fundamental Limits of Random Non-orthogonal Multiple Access in Cellular Massive IoT
Mahyar Shirvanimoghaddam, Massimo Condoluci, Mischa Dohler +1
Machine-to-machine (M2M) constitutes the communication paradigm at the basis of Internet of Things (IoT) vision. M2M solutions allow billions of multi-role devices to communicate w…
Raptor Codes for Higher-Order Modulation Using a Multi-Edge Framework
Sachini Jayasooriya, Mahyar Shirvanimoghaddam, Lawrence Ong +1
In this paper, we represent Raptor codes as multi-edge type low-density parity-check (MET-LDPC) codes, which gives a general framework to design them for higher-order modulation us…
Analysis and design of Raptor codes using a multi-edge framework
Sachini Jayasooriya, Mahyar Shirvanimoghaddam, Lawrence Ong +1
The focus of this paper is on the analysis and design of Raptor codes using a multi-edge framework. In this regard, we first represent the Raptor code as a multi-edge type low-dens…
Cooperative Multi-Sender Index Coding
Min Li, Lawrence Ong, Sarah J. Johnson
In this paper, we propose a new coding scheme and establish new bounds on the capacity region for the multi-sender unicast index-coding problem. We revisit existing partitioned Dis…