LI Zhuo-lun, HAN Zhuo-xi. An Optimization Method Using Multiple Error Correction for Turbo-Code Interleaver Identification[J]. Acta Electronica Sinica, 2021, 49(2): 239-247.
DOI:
LI Zhuo-lun, HAN Zhuo-xi. An Optimization Method Using Multiple Error Correction for Turbo-Code Interleaver Identification[J]. Acta Electronica Sinica, 2021, 49(2): 239-247. DOI: 10.12263/DZXB.20200575.
An Optimization Method Using Multiple Error Correction for Turbo-Code Interleaver Identification
The existing algorithms based on parity-check relationship in the recognition of interleaver for Turbo codes have weak adaptability at low signal-to-noise ratio (SNR) and are prone to "error propagation" in the recognition process
In order to further improve the fault tolerance and real time of interleaving recognition
we propose two error correction algorithms based on the maximum sequence correlation recognition algorithm
including iterative decoding and small traversal
which make full use of the received data and enhance the error resilience. Simulation results show that the performance of the improved algorithm is obviously better than the original algorithm by adding error correction algorithm
and it only needs 1/3 of the data to complete the identification of all the interleaved parameters under the same conditions and has more than 2dB gain to achieve the identification of all the interleaved parameters under the condition of the same amount of data. In addition
the method based on decoding error correction is universal
which is also applied to other recognition algorithms of parity-check relationship.