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07/23/2021
Error Floor Analysis of LDPC Column Layered Decoders
In this paper, we analyze the error floor of column layered decoders, al...
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04/14/2021
Error Floor Analysis of LDPC Row Layered Decoders
In this paper, we analyze the error floor of quasi-cyclic (QC) low-densi...
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05/31/2019
Cospectral Bipartite Graphs with the Same Degree Sequences but with Different Number of Large Cycles
Finding the multiplicity of cycles in bipartite graphs is a fundamental ...
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03/20/2019
On Computing the Number of Short Cycles in Bipartite Graphs Using the Spectrum of the Directed Edge Matrix
Counting short cycles in bipartite graphs is a fundamental problem of in...
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02/19/2019
Construction of QC-LDPC Codes with Low Error Floor by Efficient Systematic Search and Elimination of Trapping Sets
We propose a systematic design of protograph-based quasi-cyclic (QC) low...
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06/04/2018
On Computing the Multiplicity of Cycles in Bipartite Graphs Using the Degree Distribution and the Spectrum of the Graph
Counting short cycles in bipartite graphs is a fundamental problem of in...
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06/04/2018
On Computing the Multiplicity of Short Cycles in Bipartite Graphs Using the Degree Distribution and the Spectrum of the Graph
Counting short cycles in bipartite graphs is a fundamental problem of in...
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03/10/2018
Cluster Size Optimization in Cooperative Spectrum Sensing
In this paper, we study and optimize the cooperation cluster size in coo...
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01/06/2018
Characterization and Efficient Search of Non-Elementary Trapping Sets of LDPC Codes with Applications to Stopping Sets
In this paper, we propose a characterization for non-elementary trapping...
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11/28/2017
Hardness Results on Finding Leafless Elementary Trapping Sets and Elementary Absorbing Sets of LDPC Codes
Leafless elementary trapping sets (LETSs) are known to be the problemati...
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11/28/2017