Paper Info
Title
Low-Complexity Hybrid ARQ Scheme for Polar Codes with Higher-Order Modulation.
Abstract
Combining the polar coded hybrid automatic repeat request (HARQ) with higher-order modulation has been proposed recently. To further improve the throughput of HARQ, a novel polar coded HARQ scheme with higher-order modulation is proposed. Wherein the proposed HARQ scheme, the unequal error protection (UEP), caused by bit-mapping, in bit-interleaved polar coded modulation (BIPCM) is considered. Based on UEP, a non-linear integer programming (NLIP) problem is constructed to determine the optimal retransmitted sequence. Furthermore, a low-complexity suboptimal algorithm is proposed to solve the resulting NLIP problem. Simulation results show that the throughput of the proposed HARQ scheme outperforms the existing polar coded HARQ for higher-order modulation; in particular, our scheme easily accommodates arbitrarily puncturing methods. This makes it possible to use recently proposed puncturing methods for polar codes to further improve the performance of our HARQ scheme.
Year
Venue
Field
2017
IEEE Global Communications Conference
Hybrid automatic repeat request,Computer science,Higher-order modulation,Algorithm,Real-time computing,Modulation,Integer programming,Polar,Decoding methods,Throughput,Puncturing
DocType
ISSN
Citations 
Conference
2334-0983
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Kuangda Tian172.81
Rongke Liu212735.79
A. Vardy371176.84
Runxin Wang4362.54