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Abstract
This work introduces an application and analysis of using orthogonal complementary codes (OCC) in the area of wireless communications. The application explains a new code division multiple access (CDMA) system using orthogonal complementary codes (OCC) in both uplink and downlink channels. The idea is to use orthogonal complementary codes to decrease the bit error rate (BER) of the system without affecting the capacity. Orthogonal complementary codes have zero cross correlation and out-of-phase auto correlation values which decreases the BER and increase the signal to noise ratio. Simulations show that systems using OCC gives better BER values. Also, it is shown that the received signal to noise ratio is increased more than conventional systems using orthogonal variable spreading factor codes (OVSF) codes and Gold codes. Results of this work suggest that this algorithm improves the BER probability as much as twice the normal value