Analysis performance of MC-CDMA communication system based on improved Chebyshev sequence

Chaotic spread spectrum sequence is an important element in spread spectrum communication. To m sequences and Gold sequences with finite length and number, a new method for improved Chebyshev chaotic sequence is generated by the mixed iteration of the Tent map and Chebyshev map. It has a great significance to quantitative analysis of the new sequence generated by the improved Chebyshev mapping, and it can adapt the spread spectrum communication well in MC-CDMA system. Select m sequence, Gold sequence and improved Chebyshev chaotic sequence as the spread spectrum sequence through the BPSK modulation mode in the MC-CDMA downlink to simulation experiment. It can be proved that the error performance of the improved Chebyshev sequence is better than the other two sequences, and reveal the variation of the system error rate of the signal to noise ratio based on performed and analysis.