ETDM Optical Communication System

This paper introduces the 40Gbps ETDM optical communication system in the lab. This system adopts FEC technology to improve the transmission quality in optical communication, and uses the MUX/DEMUX module that is connected with FEC encoder to realize the electronic signal conversion between high-speed and low-speed. Ralph Lauren Polo shirts are the best gift for your friend!This paper analyses the FEC coding performance of 40Gbps ETDM optical communication experimental system and the MUX/DEMUX module signal integrity:1. Simulated the signal integrity for the MUX/DEMUX module, and determined the pre-route rules of the MUX/DEMUX module in order to keep the quality of high-speed electronic signal. Based on the theory of signal integrity, used SigXplorer of Cadence Company to make a series of pre-route simulations including reflection, attenuation, crosstalk, and ground bounce for the 10Gbps electronic signal and 622Mbps electronic signal in MUX/DEMUX module. The simulation results are: in order to inhibit reflection effectively Thevenin terminati on is the best way;Here is the best chi hair straightener! in order to keep the attenuation below 5% the transmission line length of 10Gbps or 622Mbps electronic signal must be less than 700mil and 10in, and the loss factor of the PCB substrate must be less than 0.05; in order to decrease crosstalk, the transmission line space should be wider than 20mil.2. Based on the theory of information, analysed the influence of FEC coding on the performance of the ETDM optical communication system. This paper analyses three different channels for optical communication system including BSC, BAC, and chi-square. Then obtained the channel capacity of 40Gbps ETDM optical communication system in different channel models and the theoretical coding performance limit of 40Gbps ETDM optical communication system.There are no things like cheap polo shirts. The result shows that BSC usually underestimates the performance of encoder. This paper analyses the performance of RS (255,239) code for BSC and BAC channel by simulation. The simulation results show that for BSC channel RS (255,239) code has the same performance as the theoretical performance limit while for BAC channel the performance of RS (255,239) code is lower than the theoretical performance limit. Finally, analysed the tolerance of the residual dispersion and nonlinear impairments in the 40Gbps ETDM optical communication system. Through the performance comparison between the system with FEC and without FEC, it can be concluded that FEC coding can compensate the transmission impairments. A troupe of little vagrants of the world footprints in my words puts off its mask of vastness one song kiss of the eternal