Constructions of Gaussian integer Z-periodic complementary sequence sets

This paper presents two constructions of Gaussian integer Z-periodic complementary sequence (ZPCS) sets. Construction I employs a ZPCS set as the original sequence set, however, the parameters of the resultant sequence sets cannot be flexibly chosen. Construction II generates Gaussian integer ZPCS sets using an orthogonal matrix, the ZCZ length and the flock size have flexible choices. The sequences obtained in the proposed constructions can be used in multi-carriers code division multiple access (MC-CDMA) systems to remove interference.