| In recent years,with the pace of tri-networks integration forward,a variety of WiFi business has been carried out deeply.It can be said that WiFi has become an integral part of the field of wireless communications.So its transmission performance and quality becomes extremely important.Under the traditional architecture wiring condition,the wireless signal transmitted by the router has to spread through a considerable distance to the computer or mobile phone terminal.Yet,signal will be greatly reduced due to wall or ceiling.This leads to the quality of the wireless signal received by the terminal hard to be guaranteed.Often the network is not stable or even disconnected.In the construction of WLAN,wiring difficulties are frequent occurrence,which bring a lot of problems to the development and construction of WLAN indoor coverage.Considering feeding WiFi signal into coaxial cable and connecting it to users' home.This not only solve the difficulties encountered in the past construction of WLAN network,but also give full play to the advantages of coaxial cable.Based on triple play and combined with the actual background,this thesis proposed the scheme of transmitting WiFi signal with coaxial cable and designed coaxial cable/wireless network hybrid access system.The basic principle of the system is combining cable TV signal and wireless network signal into one signal and dividing them at the user end according to signal mixing distributor.This thesis focuses on the design and manufacture of a hybrid distribution circuit of CATV signal and WiFi signal and replacing the original cable TV branch distributor.Thus,wireless signal transmission can be carried out on the basis of original cable TV wiring.Through the actual environment test and improvement,the signal reception of network hybrid access system becomes stable.It is consistent with the design plan and it has superior performance and could provide good internet performance guarantee. |
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