Adaptive modulation and priority-based flow control in wireless communications are disclosed. Ingress communication traffic is modulated for transmission over a wireless communication link. A modulation rate of modulation to be applied to the ingress communication traffic is controlled by adaptive modulation. A rate at which the ingress communication traffic is received is controlled through Priority-based Flow Control (PFC), but the PFC is based on the adaptive modulation. Adaptive modulation and PFC are thus linked together. PFC messaging could be sent when a change in modulation rate due to the adaptive modulation would not meet the rate at which the ingress communication traffic is received. If a change in modulation rate due to the adaptive modulation would still meet the rate at which the ingress communication traffic is received, then PFC messaging might not be sent.

Adaptive modulation and priority-based flow control in wireless communications

A protected point-to-point ACM communication system including at least a first component and a second component configured to provide live functionality and backup functionality for each other, at least a first receiver and a second receiver configured to receive an ACM transmission, one or more quality detectors configured to estimate quality of the received transmission of at least the first receiver and the second receiver, wherein at least one of the quality detectors is configured to estimate the quality of the received transmission using blind detection, and a controller configured to switch the live functionality of the protected point-to-point ACM communication system from one of the first component and the second component to another of the first component and the second component, based, at least partly, on the estimated qualities of the received transmissions of at least the first receiver and the second receiver. Related apparatus and methods are also described.

Protected variable data rate communication systems

A method for optimizing reception of a polarized single-carrier transmission, including transmitting a polarized single-carrier transmission to a receiver, receiving feedback from the receiver of a figure of merit of the polarized single-carrier transmission, and electronically changing polarization of the polarized single-carrier transmission based on the feedback. A single-carrier communication transmitter including a source for a polarized single-carrier transmission signal, a circuit for receiving feedback from a receiver describing a figure of merit of a received polarized single-carrier transmission, and a circuit for changing polarization of the polarized single-carrier transmission signal, based on the feedback. Related apparatus, systems and methods are also described.

Polarization pre-coding for a single carrier communication system

A method for a network controller to carry out automatic channel allocation for a network of wireless communication links between communication nodes, the method including determining an estimated signal attenuation between communication nodes in a network, allocating wireless channels, determined by a set of transmission parameters, to a plurality of wireless communication links in the network, based, at least in part, on the estimated signal attenuation, sending a message to a first communication node, the message instructing the first communication node to use a set of transmission parameters for communicating a first wireless communication link connecting the first communication node to a second communication node at an opposite end of the first wireless communication link, the transmission parameters based, at least in part, on the allocating wireless channels. Related apparatus and methods are also described.

Dynamic channel allocation

A variable data rate wireless transmitter configured to receive input of data from a plurality of input channels and transmit at least some of the data over a variable data rate wireless point-to-point communication link, wherein portions of the data are associated with priorities, and the wireless transmitter is configured to change transmission of at least some of the portions of the data, based, at least partly, on the priorities associated with the portions of the data, and on a data rate configured for transmitting the portions of the data over the variable data rate wireless communication link. A variable data rate wireless receiver configured to receive data over a variable data rate wireless point-to-point communication link, including a delay compensation buffer configured to maintain a substantially fixed delay between input of the data into a wireless transmitter transmitting the data and output of the data from the delay compensation buffer, by maintaining a suitable output rate of the data from the delay compensation buffer. Related apparatus and methods are also described.

Errorless and hitless variable data rate communications

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Errorless and hitless variable data rate communications