Multiple Z-Complementary Code Sets With Low Inter-Set Cross-Correlation

In this paper, multiple Z-complementary code sets (ZCCSs) with low inter-set cross-correlation based on circular Florentine arrays are proposed. The zero correlation zone (ZCZ) length $Z$ is flexible and the parameters are optimal. The resultant multiple ZCCSs can provide advantages in application to multi-carrier code-division multiple-access (MC-CDMA) scheme. As a byproduct, asymptotically optimal low correlation zone comple-mentary sequence set (LCZ-CSS) can be derived by combining these ZCCSs.