26 citations · 66 across the 31 of their papers we have counts for
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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…
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…
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…
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…
Characterization and Efficient Search of Non-Elementary Trapping Sets of LDPC Codes with Applications to Stopping Sets
Yoones Hashemi, Amir H. Banihashemi
In this paper, we propose a characterization for non-elementary trapping sets (NETSs) of low-density parity-check (LDPC) codes. The characterization is based on viewing a NETS as a…
Hardness Results on Finding Leafless Elementary Trapping Sets and Elementary Absorbing Sets of LDPC Codes
Ali Dehghan, Amir H. Banihashemi
Leafless elementary trapping sets (LETSs) are known to be the problematic structures in the error floor region of low-density parity-check (LDPC) codes over the additive white Gaus…