Rate-Compatible Polar Codes for Wireless Channels
Abstract
A design of rate-compatible polar codes suitable for HARQ communications is proposed in this paper. An important feature of the proposed design is that the puncturing order is chosen with low complexity on a base code of short length, which is then further polarized to the desired length. A practical rate-matching system that has the flexibility to choose any desired rate through puncturing or repetition while preserving the polarization is suggested. The proposed rate-matching system is combined with channel interleaving and a bit-mapping procedure that preserves the polarization of the rate-compatible polar code family over bit-interleaved coded modulation systems. Simulation results on AWGN and fast fading channels with different modulation orders show the robustness of the proposed rate-compatible polar code in both Chase combining and incremental redundancy HARQ communications.
Keywords
Cite
@article{arxiv.1508.07698,
title = {Rate-Compatible Polar Codes for Wireless Channels},
author = {Mostafa El-Khamy and Hsien-Ping Lin and Jungwon Lee and Hessam Mahdavifar and Inyup Kang},
journal= {arXiv preprint arXiv:1508.07698},
year = {2015}
}
Comments
Accepted for publication at 2015 IEEE Global Communications Conference (Globecom)