activity
20072021
most citedDesign of Finite-Length Irregular Protograph Codes with Low Error Floors over the Binary-Input AWGN Channel Using Cyclic Liftings

26 citations · 66 across the 31 of their papers we have counts for

collaborators

36 papers

cs.IT2021

Error Floor Analysis of LDPC Column Layered Decoders

Ali Farsiabi, Amir H. Banihashemi

In this paper, we analyze the error floor of column layered decoders, also known as shuffled decoders, for low-density parity-check (LDPC) codes under saturating sum-product algori…

cs.IT2021

Error Floor Analysis of LDPC Row Layered Decoders

Ali Farsiabi, Amir H. Banihashemi

In this paper, we analyze the error floor of quasi-cyclic (QC) low-density parity-check (LDPC) codes decoded by the sum-product algorithm (SPA) with row layered message-passing sch…

cs.DM2019

Cospectral Bipartite Graphs with the Same Degree Sequences but with Different Number of Large Cycles

Ali Dehghan, Amir H. Banihashemi

Finding the multiplicity of cycles in bipartite graphs is a fundamental problem of interest in many fields including the analysis and design of low-density parity-check (LDPC) code…

cs.IT2019

On Computing the Number of Short Cycles in Bipartite Graphs Using the Spectrum of the Directed Edge Matrix

Ali Dehghan, Amir H. Banihashemi

Counting short cycles in bipartite graphs is a fundamental problem of interest in many fields including the analysis and design of low-density parity-check (LDPC) codes. There are…

cs.IT2019

Construction of QC-LDPC Codes with Low Error Floor by Efficient Systematic Search and Elimination of Trapping Sets

Bashirreza Karimi, Amir. H Banihashemi

We propose a systematic design of protograph-based quasi-cyclic (QC) low-density parity-check (LDPC) codes with low error floor. We first characterize the trapping sets of such cod…

cs.DM2018

On Computing the Multiplicity of Cycles in Bipartite Graphs Using the Degree Distribution and the Spectrum of the Graph

Ali Dehghan, Amir H. Banihashemi

Counting short cycles in bipartite graphs is a fundamental problem of interest in the analysis and design of low-density parity-check (LDPC) codes. The vast majority of research in…