A Novel Decoding Algorithm Based on Gaussian Kernel Soft Symbol for Polar Codes with Impulsive Noise in Shallow water*
Yifei Wang, Chaoxiong Xie, Mingzhang Zhou, Khaodee Nucharat, Haixin Sun · 2023
Successive cancellation (SC) decoder decoding algorithm based Gaussian kernel (GK-SC) soft decision symbol of high order modulation for polar codes is investigated in the presence of impulsive noise. The proposed algorithm, one of non-parameter methods, doesn't need the prior information with impulsive noise, thereby avoiding the parameter estimation compared with likelihood ratio (LLR-SC). In addition, it is not necessary to configure the internal structure for the SC decoder which extremely declines the complexity of decoding algorithm. The proposed system utilizes QPSK of polar codes compared with BPSK signal and the Middleton class A model is modeled as the impulsive noise in MATLAB. Ultimately, the simulation results validate the correctness and superiority of theoretical findings in terms of reliability index.