75 citations · 705 across the 64 of their papers we have counts for
6 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…
Joint Optimization of User Association, Data Delivery Rate and Precoding for Cache-Enabled F-RANs
Tung T. Vu, Duy T. Ngo, Lawrence Ong +2
This paper considers the downlink of a cache-enabled fog radio access network (F-RAN) with limited fronthaul capacity, where user association (UA), data delivery rate (DDR) and sig…
An Equivalence Between Secure Network and Index Coding
Lawrence Ong, Badri N. Vellambi, Jörg Kliewer +1
We extend the equivalence between network coding and index coding by Effros, El Rouayheb, and Langberg to the secure communication setting in the presence of an eavesdropper. Speci…
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…