Next Generation Access Network Based on Hyperchaotic Spread Spectrum Sequences

The research focus of the next-generation optical access networks is spread-spectrum communication. However, finding a high-performing pseudo-random address code is challenging in spread spectrum communication. The conventional address code has shortcomings such as insufficient numbers and being easily cracked. The development of chaos theory has promoted the research of chaotic sequences as a spread spectrum address code. In this paper, an optimal sequence combining Chebyshev mapping and Henon mapping is proposed and constructed. The initial sensitivity and correlation characteristics of the optimal sequence are therefore evaluated. Finally, the BER of the system is simulated and tested, and it is determined that the optimal sequence is suitable for the optical access network system of the next generation.