PCC Polar Codes for Future Wireless Communications: Potential Applications and Design Guidelines

Jiang, Tao; Liu, Yangyang; Lei, Xiao; Liu, Weidan; Liu, Guanghua

doi:10.1109/mwc.017.2200586

Cited by 8 publications

(2 citation statements)

References 14 publications

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“…At the receiver of an OFDM systems, the received signal is transformed by the fast Fourier transform into a frequency domain symbol r i . Assuming that the channel state information H i is known, the equalized data ŷi is obtained from equation (2)…”

Section: Proposed Schemesmentioning

confidence: 99%

“…Polar codes, first proposed by Arikan in 2009 1 , have been shown to be a forward error correction coding scheme that can theoretically achieve the symmetric capacity of the binary-input discrete memoryless channel (BDMC) [2][3][4] , and are currently adopted as the control channel coding scheme for enhanced mobile broadband (eMBB) scenarios in 5G communication systems. In terms of decoding algorithms, Prof. Arikan proposed the successive cancellation (SC) decoding algorithm along with the publication of polar codes, which has a relatively low complexity but suffers from the defect of decoding error propagation.…”

Section: Introductionmentioning

confidence: 99%

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Decoding Study of Polar Coded-OFDM Systems in Multipath Fading Channel

Yu,

Wu,

Wan

et al. 2024

Preprint

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In this paper, we investigate the decoding performance and corresponding decoding strategies for polar-coded orthogonal frequency division multiplexing (OFDM) systems operating under multipath fading channels. Multipath fading channels lead to frequency selective fading of the OFDM signal, resulting in varying levels of noise interference across different subcarriers after equalization. Furthermore, frequency selective fading induces burst errors in the equalized information, thereby significantly degrading the decoding performance. To address these issues, we propose two schemes in this paper to enhance the decoding performance of polar-coded OFDM systems. Firstly, we integrate the channel state information of each subcarrier into the generation of soft information for the polar decoder, in order to alleviate the degradation of decoding performance caused by variations in signal-to-noise ratio (SNR) across subcarriers during OFDM demodulation. Secondly, we introduce a packet interleaving design after the polar encoder to enhance the robustness of polar codes against burst errors. Simulation results demonstrate that the combined application of these two decoding strategies significantly outperforms the conventional scheme in terms of transmission performance over multipath fading channels.

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Section: Proposed Schemesmentioning

confidence: 99%