A performance investigation of SAC-OCDMA system based on a spectral efficient 2D cyclic shift code for next generation passive optical network

A two dimensional spectral/spatial cyclic shift (2D-CS) optical code division multiple access (OCDMA) systems is proposed for a potentially next generation passive network (NG-PON) implementation called (2D-CS NG-OCDMA-PON) system. The2D-CS characterized by high capacity and zero cross correlation property leads to completely eliminating the interference (MAI) effect that considered as main OCDMA system drawback. Firstly, 2D-CScode construction investigated from 1D-CS code. Secondly, description provided exhibiting transmitter receiver architecture in PON context. Analytical analysis reveals our outperforms similar codes such perfect difference (2D-PD) dynamic (2D-DCS) terms of spectral efficiency, simultaneous subscribers data bit rate. In addition, based on numerical 2D-CS NG-OCDMA-PON shows good performance means avery low BER Q-factor values equal $$10^{{ - 26}}$$ 10.41 dB, respectively. Likewise, four users free-amplification achievable reach ability distance 63.21 km, 43.57 km 33.2 while 6 dB at rate 622 Mb/s, 1 Gb/s 1.5 Gb/s, On other side, according setup number single mode fiber (SMF) reduced half compared 2D-OCDMA-PON enhanced multi diagonal (EMD) weight ZCC (SWZCC) codes.