Abstract: A method to mitigate near end cross talk (NEXT) interference in networks may include receiving, through NEXT interference, a synchronization signal from a reference master node of a first network at a neighbor master node of a neighbor network. The method may also include scheduling, based on the synchronization signal, a cycle of downstream and upstream communications in the neighbor network synchronized with a cycle of downstream and upstream communications scheduled in the first network.

Abstract: A method to mitigate near end cross talk (NEXT) interference in networks may include receiving, through NEXT interference, a synchronization signal from a reference master node of a first network at a neighbor master node of a neighbor network. The method may also include scheduling, based on the synchronization signal, a cycle of downstream and upstream communications in the neighbor network synchronized with a cycle of downstream and upstream communications scheduled in the first network.

Abstract: Methods and systems for determining time delays of networks are disclosed. For example, a method for determining a time delay of a network having i) a transmitting node and ii) a receiving node, wherein each of the transmitting node and the receiving node comprises a Data Link Layer (DLL), a management layer, and a Physical Layer (PHY) is disclosed. The method includes determining a time that the first packet was received by the transmitting node, forwarding the time that the first packet was received to the management layer of the transmitting node; forwarding information in the first packet to the transmitting node; and determining the time delay of the network by subtracting the time the time that the first packet was received by the DLL of the transmitting node from a transmit time provided via the management layer of the receiving node.

Abstract: Method enabling multiple communication nodes to access a transmission means on an electrical grid, which permits access in a fair manner by nodes on a shared medium such as the electrical network, achieving the maximum access speed when there are no collisions between reservation requests and the detection of coexistence signals in a robust way in noisy environments. It is characterized by the use of signals for reservation (5) and release (10) of the communication and by the random waiting prior to a reservation of the electrical network with minimum and maximum values fixed in advance.

Abstract: Applicable to two-way communication over the electricity network between a plurality of user equipments (2) and a head-end equipment (1); characterized in that the receptors in the equipment (1, 2) continually monitor communication quality by estimating signal to noise ratio (S/N) in the individual carriers in the upstream and downstream channels. The user equipments monitor the state of the network at each moment in time independent of whether or not the transmission is destination for them. Optimum transmission mode is chosen as a result of this monitoring by means of modifying, packet by packet, the number of bits per carrier, the redundancy introduced by a FEC generator (forward error correction/detection), the FEC code, and/or the transmission mode; so as to achieve optimum sharing of the network in time and frequency at all times and to maximize the transmission capacity of the various user equipments by the network.