Design and Decoding Scheme of the Concatenated Polar Codes under Partial-Band Jamming Channel 


Vol. 44,  No. 2, pp. 212-220, Feb.  2019
10.7840/kics.2019.44.2.212


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  Abstract

In this paper, we propose a design and decoding schemes for concatenated codes that can be applied to the PBJ channel using a FHSS system. RS codes and polar codes are considered as the outer codes of the proposed concatenated codes, and inner codes are designed so that one inner code corresponds to one hop with a polar code. In order to improve the finite length performance of polar codes, concatenating with CRC bits is preferred and whether or not decoding fails can be determined by using whether the decoding result satisfies the CRC. Using the path metric calculated in CA-SCL decoding of the inner code, it is possible to further determine the case of failure in decoding and process it as an erasure. The performance of the concatenated code is improved by obtaining the coding gain in outer decoding process. In addition to erase insertion technique, we clipped the decoding results of the inner codes and observed additional decoding performance improvements when the jamming power is high. Finally, the performance improvement due to the soft decision gain can be obtained by using polar codes rather than using RS codes as outer codes of the concatenated codes.

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  Cite this article

[IEEE Style]

H. Ahn, J. No, G. Kim, H. Song, J. Ahn, "Design and Decoding Scheme of the Concatenated Polar Codes under Partial-Band Jamming Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 2, pp. 212-220, 2019. DOI: 10.7840/kics.2019.44.2.212.

[ACM Style]

Hyoungbae Ahn, Jong-Seon No, Gangsan Kim, Hong-Yeop Song, and Jaeha Ahn. 2019. Design and Decoding Scheme of the Concatenated Polar Codes under Partial-Band Jamming Channel. The Journal of Korean Institute of Communications and Information Sciences, 44, 2, (2019), 212-220. DOI: 10.7840/kics.2019.44.2.212.

[KICS Style]

Hyoungbae Ahn, Jong-Seon No, Gangsan Kim, Hong-Yeop Song, Jaeha Ahn, "Design and Decoding Scheme of the Concatenated Polar Codes under Partial-Band Jamming Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 2, pp. 212-220, 2. 2019. (https://doi.org/10.7840/kics.2019.44.2.212)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880