4 papers
Communication-Efficient LDPC Code Design for Data Availability Oracle in Side Blockchains
Debarnab Mitra, Lev Tauz, Lara Dolecek
A popular method of improving the throughput of blockchain systems is by running smaller side blockchains that push the hashes of their blocks onto a trusted blockchain. Side block…
Concentrated Stopping Set Design for Coded Merkle Tree: Improving Security Against Data Availability Attacks in Blockchain Systems
Debarnab Mitra, Lev Tauz, Lara Dolecek
In certain blockchain systems, light nodes are clients that download only a small portion of the block. Light nodes are vulnerable to data availability (DA) attacks where a malicio…
Non-Uniform Windowed Decoding For Multi-Dimensional Spatially-Coupled LDPC Codes
Lev Tauz, Homa Esfahanizadeh, Lara Dolecek
In this paper, we propose a non-uniform windowed decoder for multi-dimensional spatially-coupled LDPC (MD-SC-LDPC) codes over the binary erasure channel. An MD-SC-LDPC code is cons…
Multi-Dimensional Spatially-Coupled Code Design: Enhancing the Cycle Properties
Homa Esfahanizadeh, Lev Tauz, Lara Dolecek
A circulant-based spatially-coupled (SC) code is constructed by partitioning the circulants in the parity-check matrix of a block code into several components and piecing copies of…