Selection Technique of Maximum Correlation Power Limited Gold Code Set of Limited Length 


Vol. 44,  No. 4, pp. 629-636, Apr.  2019
10.7840/kics.2019.44.4.629


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  Abstract

A new code selection scheme is proposed to select codes from truncated Gold codes. The selected codes will have limited auto- and cross-correlation power below specified threshold level. The proposed scheme is constituted of 2-step procedures. The first selection step is limiting the maximum auto-correlation power and produces a candidate code set. The second selection step is limiting the maximum cross-correlation power among the codes in the candidate code set and produces the final code set. By applying the selection scheme to the codes generated by 3GPP downlink scrambling code generator, we can obtain a code set of 9 truncated Gold codes with length 10230 and auto- and cross-correlation power limit of -28 dB. When the maximum cross-correlation power limit is raised to -27 dB, the number of codes included in the selected code set is increased to 49 codes. The proposed code selection scheme would be helpful to reduce the maximum auto- and cross-correlation power within the selected code set compared to random binary codes such that would contribute to reduce the false detection possibility of other user signals.

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  Cite this article

[IEEE Style]

S. Kim, K. Kim, K. Song, J. Ahn, "Selection Technique of Maximum Correlation Power Limited Gold Code Set of Limited Length," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 4, pp. 629-636, 2019. DOI: 10.7840/kics.2019.44.4.629.

[ACM Style]

Seung-tae Kim, Kap-jin Kim, Ki-won Song, and Jae-min Ahn. 2019. Selection Technique of Maximum Correlation Power Limited Gold Code Set of Limited Length. The Journal of Korean Institute of Communications and Information Sciences, 44, 4, (2019), 629-636. DOI: 10.7840/kics.2019.44.4.629.

[KICS Style]

Seung-tae Kim, Kap-jin Kim, Ki-won Song, Jae-min Ahn, "Selection Technique of Maximum Correlation Power Limited Gold Code Set of Limited Length," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 4, pp. 629-636, 4. 2019. (https://doi.org/10.7840/kics.2019.44.4.629)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880