"I can't remember if it's the one that gives a memory-parity error when I turn it on," he said.
In this work, we compare parity-based error detection with software-based retry, and LTMR on a reference architecture regarding maximum frequency, area overhead and processing time.
Simulation results obtained with Reed-Solomon and Low-density parity check error-correcting codes show significant improvements for both erroneous and lossy transmission channel configurations.
In addition, the existence of any fault in the input lines of the adder modules can be identified by low-cost parity checking error-detection approach, and a faulty module can be localized by comparing the faulty output from the first computation with the fault-free output from the recomputation.
Our results show that our solution based on parity-based error-detection saves from 29% up to 36% of the area overhead caused by LTMR.
The number of parity-check errors after a predetermined number of iterations is used to estimate the remaining number of iterations until decoder termination and is used to determine the voltage and the clock frequency for the remaining iterations.
Parity comparisons provide error detection, while output data correction is affected by a decoding method that includes both round-off error and computer-induced errors.
In this case, the "data" in the set-up should be "pieces of eight", but it reads as "pieces of seven", so there is clearly a parity (or "parroty") error.
If the demanded number of parity bits for error correction is different from the computed value, the performance of the proposed method could decrease.
Helper data: It is auxiliary data/side information, which is needed for running biometric system successfully (e.g., data for alignment, parity bits of error correction codes).
Provides more than 16.5 dB worth of SNR gain at a BER of 10−5 within the given simulation as compared to low density parity check (LDPC) error correcting codes.
