Two constructions for optimal Z-complementary sequence sets

Z-complementary sequence sets (ZCSSs) can be applied to multi-carrier code division multiple access (MC-CDMA) systems as user address codes eliminate multi-path interference and multi-access interference. In this paper, two constructions of ZCSSs are investigated. First all, flexible diverse seed employed generate a large number optimal ZCSSs, which is generalization an existing construction. Next, note that most obtained by orthogonal-matrix-based have lengths multiples the ZCZ widths. Toward challenge designing various lengths, we proposed noval construction yield with arbitrary based on orthogonal matrices. way, different transmission rates facility provided cater for application scenarios. addition, flock sizes widths chosen flexibly. It means that, in theory, MC-CDMA sub-carriers. To best our knowledge, not been reported literature.