Title :
A Hybrid ARQ Scheme Based on Polar Codes
Author :
Kai Chen ; Kai Niu ; Jiaru Lin
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
A hybrid automatic repeat request (HARQ) scheme based on a novel class of rate-compatible polar (RCP) codes is proposed. The RCP codes are constructed by performing punctures and repetitions on the conventional polar codes. Simulation results over binary-input additive white Gaussian noise channels show that, under a low-complexity successive cancellation decoder, the proposed HARQ scheme can perform as well as the existing schemes based on turbo codes and low-density parity-check codes. The proposed transmission scheme is only about 1.0 to 1.5dB away from the channel capacity with the information block length of 1024 bits.
Keywords :
AWGN channels; automatic repeat request; channel capacity; decoding; parity check codes; turbo codes; HARQ scheme; RCP codes; binary-input additive white Gaussian noise channels; channel capacity; hybrid automatic repeat request scheme; low-complexity successive cancellation decoder; low-density parity-check codes; rate-compatible polar codes; storage capacity 1024 bit; turbo codes; Automatic repeat request; Decoding; Parity check codes; Signal to noise ratio; Throughput; Turbo codes; Vectors; Polar codes; hybrid ARQ; rate-compatible coding; successive cancellation decoding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.090213.131670
