Research On Reliability Of High-Speed Digital Optical Communication System Based On BER Analysis

High-speed digital optical fiber communication is the most widely used mode of information communication nowadays.It plays an irreplaceable role in social production,human life,national defense and other fields.It is also because of the important role of high-speed digital optical fiber communication system in the field of information and communication,the security and reliability of the system put forward higher and stricter requirements.Among the factors that affect the reliability of high-speed digital optical fiber communication,error code is the most important index and one of the standards to measure the data transmission quality of high-speed digital optical fiber communication.In high-speed digital optical fiber communication system,the emergence of error code will seriously affect the transmission of network data.Once the error phenomenon occurs,it will worsen with the increase of network transmission switching node equipment,and the external environment will interfere with it.It will further expand the error rate situation,which will lead to the complete interruption or collapse of transmission services,which seriously reduces the reliability of high-speed digital optical fiber communication system.In this paper,through the research and analysis of WDM high-speed digital optical fiber communication system,a performance prediction method of high-speed digital optical fiber communication system based on error analysis is proposed.Aiming at the respective structural characteristics of the series network and the parallel network,the corresponding reliability equations are established.The reliability theory method is used to establish a network to study the error data statistically.Various factors affecting the reliability of optical fiber communication are analyzed and the protection of the optical fiber is established.And recovery plan.The method of collecting the error data of WDM optical fiber communication is briefly introduced,and the processing flow of the error code data of the optical transmission system is formulated.In order to study the BER of WDM optical fiber communication system,the quality factor(Q factor)is used as the object,and the optical signal is simulated using MATLAB.The results show that,under the conditions determined by other variables,the Q value follows the frequency of the laser.Increase and decrease.When the frequency is 191Thz,the maximum Q value is 11.1042.When the power is OdB,the maximum Q value is 10.7786.When the attenuation coefficient is 0.21,the maximum Q value is 10.7797,and the maximum value is reached.After that,the Q value decreases as the power of the laser increases.The error data analysis method based on time series method and regression analysis method is designed.Then the least squares method is used to perform polynomial curve fitting.The performance prediction model of WDM high-speed digital optical fiber communication system is established.Finally,Matlab was used to verify the prediction models of the two methods.From the comparison of the simulation results,we can see that although the results based on the exponential smoothing method have certain reference value,the performance of high-speed digital fiber communication based on the regression analysis method The predictive model can be very delicate feedback on the change trend of the original data,and the fitted curve has a high degree of fit with the original data.Therefore,the prediction accuracy of the error data is significantly higher than that based on the exponential smoothing method,and better results are obtained.The prediction effect.Through the research of this paper,the influencing factors of the reliability of WDM high-speed digital optical fiber communication system are combed,a performance prediction model is established,and the effective measures for improving the reliability of WDM high-speed digital optical fiber communication system are proposed in combination with the research results,and the WDM high-speed digital optical fiber is improved.The security and survivability of communication systems are of great significance.This article innovatively establishes a high-speed digital optical communication system reliability research method based on error data analysis of high-speed digital optical communication systems.Based on the error data,the reliability prediction of high-speed digital optical communication systems is performed to improve the high speed.The safety and reliability of digital optical fiber communication system have important research value.