A network access device which is connected to a control server through a network and connected to at least one end point through a copper-wired bundle cable, the network access device comprising: an interface module configured to be connected to the control server through the network; at least one domain master configured to be paired with the at least one end point, and to perform a channel estimation between the at least one domain master and the end point being paired; an adaptation module located between the domain master and the interface module and configured to convert between G.hn protocol signals of the domain master and Ethernet signals of the interface module; and a processor configured to control the interface module and the at least one domain master; characterized in that: the at least one domain master is configured to perform a pairing registration, and to report the registration to the processor, and wherein the processor is configured to report the registration to the control server through the network; wherein the processor is configured to receive a channel estimation request from the control server through the network and to transmit the channel estimation request to the at least one domain master for channel estimation, the channel estimation comprising interference information generated by a communication between the domain master and the end point; and wherein the processor is further configured to receive the channel estimation performed by the domain master, to report the channel estimation to the control server, to receive resource provisioning estimated by the control server based on the channel estimation, and to provision the domain master and the end point based on the resource provisioning. an interface module configured to be connected to the control server through the network; at least one domain master configured to be paired with the at least one end point, and to perform a channel estimation between the at least one domain master and the end point being paired; an adaptation module located between the domain master and the interface module and configured to convert between G.hn protocol signals of the domain master and Ethernet signals of the interface module; and a processor configured to control the interface module and the at least one domain master; characterized in that: the at least one domain master is configured to perform a pairing registration, and to report the registration to the processor, and wherein the processor is configured to report the registration to the control server through the network; wherein the processor is configured to receive a channel estimation request from the control server through the network and to transmit the channel estimation request to the at least one domain master for channel estimation, the channel estimation comprising interference information generated by a communication between the domain master and the end point; and wherein the processor is further configured to receive the channel estimation performed by the domain master, to report the channel estimation to the control server, to receive resource provisioning estimated by the control server based on the channel estimation, and to provision the domain master and the end point based on the resource provisioning. the at least one domain master is configured to perform a pairing registration, and to report the registration to the processor, and wherein the processor is configured to report the registration to the control server through the network; wherein the processor is configured to receive a channel estimation request from the control server through the network and to transmit the channel estimation request to the at least one domain master for channel estimation, the channel estimation comprising interference information generated by a communication between the domain master and the end point; and wherein the processor is further configured to receive the channel estimation performed by the domain master, to report the channel estimation to the control server, to receive resource provisioning estimated by the control server based on the channel estimation, and to provision the domain master and the end point based on the resource provisioning.