Flexible IR-HARQ Scheme for Polar-Coded Modulation
Peihong Yuan, Fabian Steiner, Tobias Prinz, Georg B\"ocherer
TL;DR
This paper introduces a flexible IR-HARQ scheme for polar codes that allows variable transmission lengths and improves performance over LTE-turbo and 5G-LDPC codes in noisy channels.
Contribution
It proposes a novel IR-HARQ scheme using dynamically frozen bits and QUP, enabling non-power-of-two code lengths and broad applicability.
Findings
Achieves similar performance to directly designed polar codes with QUP.
Outperforms LTE-turbo and 5G-LDPC codes with IR-HARQ.
Applicable to biAWGN and higher-order modulation channels.
Abstract
A flexible incremental redundancy hybrid auto- mated repeat request (IR-HARQ) scheme for polar codes is proposed based on dynamically frozen bits and the quasi-uniform puncturing (QUP) algorithm. The length of each transmission is not restricted to a power of two. It is applicable for the binary input additive white Gaussian noise (biAWGN) channel as well as higher-order modulation. Simulation results show that this scheme has similar performance as directly designed polar codes with QUP and outperforms LTE-turbo and 5G-LDPC codes with IR-HARQ.
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Taxonomy
TopicsError Correcting Code Techniques · Advanced Wireless Communication Techniques · Algorithms and Data Compression