The check-bits-weight-adjustable scheme of rate compatible modulation based on the systematic Polar code

Rate compatible modulation is a novel adaptive transmission technology that does not require channel state information feedback, can achieve rate adaptive adjustment, and smoothly approach channel capacity. However, due to the nature of incremental decoding, the decoding complexity is too high and t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2021-02, Vol.1792 (1), p.12082
Main Authors: Peng, Bin, Liu, Wei, Zhu, Jinkun
Format: Article
Language:English
Subjects:
Channel capacity
Codes
Compatibility
Decoding
Design optimization
Modulation
Physics
Signal to noise ratio
Weight
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Rate compatible modulation is a novel adaptive transmission technology that does not require channel state information feedback, can achieve rate adaptive adjustment, and smoothly approach channel capacity. However, due to the nature of incremental decoding, the decoding complexity is too high and the transmission performance is reduced under bad channel conditions. Based on the feature of the systematic Polar code that separates the information bits and the check bits, this paper optimizes the design of the hybrid cascade of the systematic Polar code and rate-compatible modulation, and proposes a feasible scheme for adjusting the corresponding weight of check bits. The simulation results show that the proposed scheme can achieve better transmission performance in a wider range of signal-to-noise ratio with relatively lower decoding overhead.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1792/1/012082