Fixed rate erasure codes are a specific type of data redundancy technique where the ratio of original data to redundant parity data is predetermined and constant. This coding scheme adds a fixed amount of error correction information, enabling data reconstruction from a subset of the encoded pieces. Such codes offer predictable storage overhead and recovery capabilities, simplifying system design.
Context
The application of fixed rate erasure codes is relevant in blockchain data availability solutions where consistent performance and predictable storage costs are desirable. Debates often focus on selecting an optimal fixed rate that provides sufficient data redundancy for security against data loss, without incurring excessive storage or computational burdens on network nodes. Research aims to balance these factors for improved network resilience.
This new modular paradigm uses Random Linear Network Coding on uncoded data, yielding dramatically stronger data availability assurances for light nodes.
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