Abstract: Systems and methods presented herein provide for improved duplex communications in an RF cable network comprising a plurality of CMs. In one embodiment, a system includes a CMTS operable to transmit downstream communications to the CMs and to process upstream communications from the CMs. The system also includes a duplex RF communication path between the CMTS and the CMs. The CMTS is further operable to transmit a control signal that directs a first of the CMs to transmit, to direct the remaining CMs to receive the transmission from the first CM, to direct the CMs to report received power levels of the transmission from the first CM, and to calculate RF isolations of the remaining CMs with respect to the first CM based on the reported power levels.

Abstract: A method for establishing a wireless connection between a user equipment (UE) device and a base station in unlicensed radio frequency (RF) spectrum includes (a) receiving, at the UE device, a plurality of RF beams broadcasted by the base station, (b) identifying a selected RF beam of the plurality of RF beams having control information with a maximum received signal level, and (c) identifying a first channel occupancy time (COT1) of the base station from control information of the selected RF beam.

Abstract: A method for redundant communication at a network gateway includes (1) exchanging data packets with a network application via a first access communication interface, (2) exchanging data packets with customer premises equipment (CPE) via a local communication interface, and (3) in response to occurrence of a first event, exchanging at least some data packets with the network application via a second access communication interface that is different from the first access communication interface.

Abstract: A method for differentiator-based compression of digital data includes (a) multiplying a tap-weight vector by an original data vector to generate a predicted signal, the original data vector comprising N sequential samples of an original signal, N being an integer greater than or equal to one, (b) using a subtraction module, subtracting the predicted signal from a sample of the original signal to obtain an error signal, (c) using a quantization module, quantizing the error signal to obtain a quantized error signal, and (d) updating the tap-weight vector according to changing statistical properties of the original signal.

Abstract: A communications network includes a central communication unit, an optical transport medium, and a plurality of remote radio base stations. The central communication unit generates, within a selected millimeter-wave frequency band, a plurality of adjacent two-tone optical frequency conjugate pairs. Each conjugate pair includes a first optical tone carrying a modulated data signal, and a second optical tone carrying a reference local oscillator signal. The optical transport medium transports the plurality of two-tone conjugate pairs to the plurality of radio base stations, and each base station receives at least one conjugate pair at an optical front end thereof. The optical front end separates the first optical tone from the second optical tone, and converts the first optical tone into a millimeter-wave radio frequency electrical signal.

Abstract: A virtual network system for a computer network is provided. The system includes a first host executing a virtual network function manager. The system also includes a second host executing a management virtual machine. The management virtual machine is in communication with the virtual network function manager and with one or more virtual network function component instantiations. The management virtual machine is programmed to route messages between the one or more virtual network function component instantiations and the virtual network function manager.

Abstract: A radio frequency (RF) beam transmission component having optical inputs and electrical outputs may include a wavelength selective switch (WSS) that has a plurality of optical WSS outputs. Each optical WSS output may be configured to transmit one or more wavelengths of the incoming optical signals. The RF beam transmission component may include a plurality of photodetectors (PD), each photodetector having an optical PD input coupled to one or more of said plurality of optical WSS outputs and a corresponding electrical output of a plurality of PD electrical outputs. The RF beam transmission component may further include a lens that has a plurality of electrical inputs and each electrical input may be electrically coupled to at least one of the plurality of electrical PD outputs. The lens may further have a plurality of electrical lens output ports.

Abstract: Methods, systems, and devices for enabling public key infrastructure (PKI) in the generic could environment and the network function virtualization (NFV) environment. A host device may receive, from an orchestrator of a computer network environment, an indication of a workload to be executed by a virtual machine (VM) hosted on the host device, where the indication includes an identifier of the workload. The VM may transmit a request for a certificate to a hardware security module associated with the host device including the identifier of the workload. After transmitting the request for the certificate, the VM may receive the requested certificate from the HSM. In some cases, the VM may determine a private key associated with the workload and include the private key within the request for the certificate. Additionally or alternatively, the HSM may determine the private key. Here, the HSM may include the private key within the certificate.

Abstract: A network device for maintaining a communication network is provided. The network device includes a transceiver configured for operable communication with at least one device. The network device also includes a processor including a memory configured to store computer-executable instructions. When executed by the processor the instructions cause the network device to store a plurality of network capabilities associated with a plurality of connectivity categories and a plurality of network settings, receive, from a first device, a connectivity advertisement including at least one connectivity category for the first device, retrieve a subset of the plurality of network capabilities based on the at least one connectivity category, determine one or more network settings for the network device based on the at least one connectivity category for the first device and the subset of network capabilities, and implement the one or more network setting on the network device.

Abstract: A system for monitoring the communication with a connected Internet of Things (IoT) device is provided. The system includes a first computing device including a least one processor in communication with at least one memory device. The at least one memory device stores a plurality of instructions, which when executed by the at least one processor cause the at least one processor to execute an IoT device communication application. The IoT device communication application monitors the IoT device. The instructions also cause the at least one processor to store IoT device data including a current location of the IoT device, determine an optimal communication path between the IoT device communication application and the IoT device based on the IoT device data, and transfer execution of the IoT device communication application to a second computing device based on the optimal communication path.

Abstract: A method is provided for displaying an immersive video content according to eye movement of a viewer includes the steps of detecting, using an eye tracking device, a field of view of at least one eye of the viewer, transmitting eye tracking coordinates from the detected field of view to an eye tracking processor, identifying a region on a video display corresponding to the transmitted eye tracking processor, adapting the immersive video content from a video storage device at a first resolution for a first portion of the immersive video content and a second resolution for a second portion of the immersive video content, the first resolution being higher than the second resolution, displaying the first portion of the immersive video content on the video display within a zone, and displaying the second portion of the immersive video content on the video display outside of the zone.

Abstract: Beamforming for adapting wireless signaling beams in an adaptive and agile manner is contemplated. The beamforming may be characterized by adaptively constructing beam form parameters to provide wireless signaling in a manner that maximizes efficiency and bandwidth according to device positioning relative to a responding base station.

Abstract: A system for enhanced public key infrastructure is provided. The system includes a computer device. The computer device is programmed to receive a digital certificate including a composite signature field including a plurality of signatures. The plurality of signatures include at least a first signature and a second signature. The computer device is also programmed to retrieve, from the digital certificate, a first key associated with the first signature from the digital certificate. The computer device is further programmed to retrieve the first signature from the composite signature field. In addition, the at least one computer device is programmed to validate the first signature using the first key.

Abstract: A method for equalizer correction in a communication network includes (a) obtaining raw equalizer coefficients in a frequency domain, (b) removing time delay from the raw equalizer coefficients to generate corrected equalizer coefficients in a time domain such that a direct current (DC) corrected equalizer coefficient of the corrected equalizer coefficients has a phase of zero, and (c) converting the corrected equalizer coefficients from the time domain to the frequency domain.

Abstract: A profile optimizing method is provided for a downstream channel transmission of active subcarriers to user devices. The method includes steps of receiving channel measurement data from each user device for each subcarrier, calculating a maximum bit-loading value for each user device per subcarrier, grouping the user devices into a plurality of clusters based on a proximity of the maximum bit-loading values of a first user device to those of a second user device within the particular cluster, assigning each user device within the particular cluster to a single cluster profile. A plurality of single cluster profiles for the plurality of clusters forms a set of cluster profiles. The method further includes steps of determining a channel capacity ratio for the set of cluster profiles, and combining at least two single profiles of the set of cluster profiles into a coalesced profile pair.

Abstract: A method for remote monitoring includes (1) generating first sensor data from a first sensor at a first network node of a communications network and (2) sending the first sensor data from the first sensor to a second network node that is remote from the first network node, via the communications network. The first network node is powered from an electrical power grid that is separate from the communications network. The first sensor data may be raw sensor data and/or lossless sensor data.

Abstract: A method for chromatic dispersion pre-compensation in an optical communication network includes (1) distorting an original modulated signal according to an inverse of a transmission function of the optical communication network, to generate a compensated signal, (2) modulating a magnitude of an optical signal in response to a magnitude of the compensated signal, and (3) modulating a phase of the optical signal, after modulating the magnitude of the optical signal, in response to a phase of the compensated signal.

Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.

Abstract: A software defined networking (SDN) controller for a communication network is provided. The SDN controller includes a northbound interface, a southbound interface, and a database as a service (DBaaS) layer. The northbound interface includes an application layer having one or more independent SDN applications. The southbound interface includes an adapter layer having one or more independent device adapters. The DBaaS layer includes a persistent DBaaS unit and a state DBaaS unit.

Abstract: An interface device for communicatively coupling a first communication medium and a second communication medium includes a radio frequency (RF) processor and a frequency shifting subsystem. The RF processor is configured to receive a first data signal from the first communication medium and convert the first data signal to a plurality of first internal RF signals having a common center frequency. The frequency shifting subsystem is configured to shift the plurality of first internal RF signals having the common center frequency to respective first external RF signals having different respective center frequencies, for transmission on the second communication medium. The second communication medium may be a coaxial electrical cable.