Improvement of Code Utilization CDMA for On-Chip Communication Architecture using Orthogonal Gold Code

Orthogonal codes are majorly crucial for code division multiple access (CDMA) for suppressing the multiple access interference (MAI). The Walsh based orthogonal codes are used for data transmission in on-chip communication because of cross correction is zero between adjacent sequences. Though, the code utilization is less of Walsh based codes when compared with Pseudo-random noise (PN) sequences. To provide better code utilization with orthogonality, an orthogonal gold code is proposed in this paper thereby the orthogonal gold code is used for large size of on-chip communication architecture. These codes are suitable for CDMA and show better code utilization than the Walsh based orthogonal codes. For implementation, the Xilinx 14.7 software with Vertex-6 FPGA and is used and simulations of 32-bit are experimented in MATLAB thereby the crosscorrelation performance improved than Walsh based orthogonal codes.