Design of Puncturing for Length-Compatible Polar Codes Using Differential Evolution

TL;DR

This paper introduces a differential evolution-based method for designing puncturing patterns in length-compatible polar codes, optimizing bit-error-rate performance for AWGN channels.

Contribution

It proposes a novel DE-based optimization framework for puncturing polar codes, reducing candidate patterns and improving performance over existing methods.

Findings

Outperforms state-of-the-art puncturing techniques

Identifies key bits to avoid for puncturing in AWGN channels

Reduces complexity of puncturing pattern selection

Abstract

This paper presents a puncturing technique to design length-compatible polar codes. The punctured bits are identified with the help of differential evolution (DE). A DE-based optimization framework is developed where the sum of the bit-error-rate (BER) values of the information bits is minimized. We identify a set of bits which can be avoided for puncturing in the case of additive white Gaussian noise (AWGN) channels. This reduces the size of the candidate puncturing patterns. Simulation results confirm the superiority of the proposed technique over other state-of-the-art puncturing methods.