According to remote commands of CMTS, analyzes upstream signal compositive characteristics of HFC network in Guangzhou city. By building reverse noise monitor system to search economical means to resolve noise in actual network,advises the need to set up restrict relation between upstream data rate, reverse noise and investment scale on HFC network.
Using improvement method will simplify thetheory of aligning reverse path ,elevate the efficiency of everyday maintenance,improve the ability of cable modem signal that resist reverse noise.
The optimal value of this figure is determined and an estimate is made of the influence of the reverse noise of the electromechanical transducer.
According to remote commands of CMTS, analyzes upstream signal compositive characteristics of HFC network in Guangzhou city.By building reverse noise monitor system to search economical means to resolve noise in actual network,advises the need to set up restrict relation between upstream data rate, reverse noise and investment scale on HFC network.
How many customers should a fiber node serve? Base on the analysis of three important factors: the parameters of forward transmission, and the capacity requirement of data and the reverse noise. We can see that it's insignificant to limit the maximum number of customer of a fiber node. What we should do to reduce the customers of a CMTS.