TY - GEN
T1 - A Novel Scheme for Peak-to-Average Power Ratio Reduction Using Polar Codes
AU - Huang, Chin Chieh
AU - Kao, Tzu Chieh
AU - Pai, Cheng Yu
AU - Chen, Chao Yu
N1 - Funding Information:
*This work was supported in part by the Ministry of Science and Technology, Taiwan, R.O.C., under Grants MOST 109–2628–E–006–008–MY3 and MOST 111–2218–E–305–002.
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In this paper, a novel scheme based on polar codes is presented to deal with the high peak-to-average power ratio (PAPR) problem in the orthogonal frequency division multiplexing (OFDM) system. The proposed method uses the frozen bits in polar codes to generate an offset. Then, the offset is added to the encoded codeword such that the transmitted codeword can have a lower PAPR. Also, an algorithm is proposed to find the appropriate combination of frozen bits for a given dimension and a codeword length. In some cases, the transmitted codeword lies in a certain Golay complementary set (GCS). Therefore, the transmitted codeword has upper-bounded PAPRs due to the well-known PAPR property of the GCS. In comparison with the selected mapping (SLM) scheme, the proposed scheme has lower computational complexity since the values of the frozen bits are determined in advance. Simulation results show that the proposed algorithm offers good PAPR reduction without affecting the decoding performance of the polar code.
AB - In this paper, a novel scheme based on polar codes is presented to deal with the high peak-to-average power ratio (PAPR) problem in the orthogonal frequency division multiplexing (OFDM) system. The proposed method uses the frozen bits in polar codes to generate an offset. Then, the offset is added to the encoded codeword such that the transmitted codeword can have a lower PAPR. Also, an algorithm is proposed to find the appropriate combination of frozen bits for a given dimension and a codeword length. In some cases, the transmitted codeword lies in a certain Golay complementary set (GCS). Therefore, the transmitted codeword has upper-bounded PAPRs due to the well-known PAPR property of the GCS. In comparison with the selected mapping (SLM) scheme, the proposed scheme has lower computational complexity since the values of the frozen bits are determined in advance. Simulation results show that the proposed algorithm offers good PAPR reduction without affecting the decoding performance of the polar code.
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U2 - 10.1109/IWSDA50346.2022.9870591
DO - 10.1109/IWSDA50346.2022.9870591
M3 - Conference contribution
AN - SCOPUS:85138739173
T3 - 2022 10th International Workshop on Signal Design and Its Applications in Communications, IWSDA 2022 - Proceedings
BT - 2022 10th International Workshop on Signal Design and Its Applications in Communications, IWSDA 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Workshop on Signal Design and Its Applications in Communications, IWSDA 2022
Y2 - 1 August 2022 through 5 August 2022
ER -