74 citations · 121 across the 3 of their papers we have counts for
6 papers
New Density Evolution Approximation for LDPC and Multi-Edge Type LDPC Codes
Sachini Jayasooriya, Mahyar Shirvanimoghaddam, Lawrence Ong +2
This paper considers density evolution for lowdensity parity-check (LDPC) and multi-edge type low-density parity-check (MET-LDPC) codes over the binary input additive white Gaussia…
A Joint Optimization Technique for Multi-Edge Type LDPC Codes
Sachini Jayasooriya, Mahyar Shirvanimoghaddam, Lawrence Ong +1
This paper considers the optimization of multi-edge type low-density parity-check (METLDPC) codes to maximize the decoding threshold. We propose an algorithm to jointly optimize th…
Optimization of Graph Based Codes for Belief Propagation Decoding
Sachini Jayasooriya, Sarah J. Johnson, Lawrence Ong +1
A low-density parity-check (LDPC) code is a linear block code described by a sparse parity-check matrix, which can be efficiently represented by a bipartite Tanner graph. The stand…
On Capacity and Optimal Scheduling for the Half-Duplex Multiple-Relay Channel
Lawrence Ong, Mehul Motani, Sarah J. Johnson
We study the half-duplex multiple-relay channel (HD-MRC) where every node can either transmit or listen but cannot do both at the same time. We obtain a capacity upper bound based…
On the Equal-Rate Capacity of the AWGN Multiway Relay Channel
Lawrence Ong, Christopher M. Kellett, Sarah J. Johnson
The L-user additive white Gaussian noise multiway relay channel is investigated, where L users exchange information at the same rate through a single relay. A new achievable rate r…
The Capacity Region of Multiway Relay Channels Over Finite Fields with Full Data Exchange
Lawrence Ong, Sarah J. Johnson, Christopher M. Kellett
The multi-way relay channel is a multicast network where L users exchange data through a relay. In this paper, the capacity region of a class of multi-way relay channels is derived…