Noncoherent optical CDMA system of 2-D subtracted square codes using two code keying by eliminating the multiple use interferences

We propose the new two-dimensional subtracted square (SS) codes to achieve the new family in the spectral amplitude coding (SAC) optical code division multiple access (OCDMA) networks. The proposed codes give the multiplication between the 1-D subtracted square codes and 1-D subtracted square codes to become the code sequences of the 2-D SS codes. The proposed structure using the 2-D SS codes constructs the proposed transmitter and proposed...