Abstract
Based on orthogonal matrices, two constructions of Z-periodic complementary sequence set are introduced in this letter. The two proposed approaches can provide flexible choices for the flock size of the Z-periodic complementary sequence set, which cannot be obtained by known methods. The parameters of resultant Z-periodic complementary sequence sets are (M, N)PCSM2NM1 and (M, N -1)PCSM2NN1 respectively, which are all optimal when N1 <; N - 1. The resultant ZPCSs can be potential applied in multi-carriers CDMA communication systems and MIMO channel estimation.
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