2-D Optical CDMA Code With Maximum Cross-Correlation Value of Two

In this paper, a new family of two-dimensional optical codes with the maximum cross-correlation value of two is constructed and analyzed. The new construction supports larger code cardinality (i.e., more subscribers) and heavier code weight (i.e., better code performance or more simultaneous users) without increasing the code length or number of wavelengths. Our results show that the new code performs better than our multiple-wavelength optical orthogonal code, which had the cross-correlation values of at most one.