CAJ | 학술논문

为了提高RRWBF算法的译码速度，提出一种多比特翻转机制来加快RRWBF算法的收敛速度。但是，使用该多比特翻转机制的RRWBF算法时，译码过程中出现与单比特翻转类似的循环翻转现象，影响其译码性能。为此，进一步提出一种循环翻转消除机制来破坏多比特翻转译码过程中产生的循环翻转，进而提高其译码性能。仿真结果显示，与单比特翻转算法相比，提出的基于循环翻转消除的多比特RRWBF算法以较小的译码性能损失换来译码速度的较大提升。
위료제고RRWBF산법적역마속도，제출일충다비특번전궤제래가쾌RRWBF산법적수렴속도。단시，사용해다비특번전궤제적RRWBF산법시，역마과정중출현여단비특번전유사적순배번전현상，영향기역마성능。위차，진일보제출일충순배번전소제궤제래파배다비특번전역마과정중산생적순배번전，진이제고기역마성능。방진결과현시，여단비특번전산법상비，제출적기우순배번전소제적다비특RRWBF산법이교소적역마성능손실환래역마속도적교대제승。
In order to improve the decoding speed of the RRWBF algorithm, a multiple-bits selection mechanism was proposed to accelerate the decoding convergence speed of the RRWBF algorithm. However, the RRWBF algorithm with the multiple-bits selection mechanism will appear the bit-repeated flipping, which can impair the decoding performance of the RRWBF algorithm. Hence, a bit-repeated flipping elimination mechanism was proposed to reduce the bit-repeated flipping in the process of the multiple-bits flipping decoding. Simulation results show that the RRWBF algorithm with the multiple-bits selection and the repeated flipping elimination mechanism has a much faster decoding speed at the cost of a little decoding performance loss compared with the RRWBF algorithm.