A system and method for generating a channel statistics dependent frequency hopping pattern that requires low computational complexity and simultaneously maximizes channel capacity and minimizes the symbol error rate or bit error rate under partial band tone interference and Rician or other fading environments. The system includes one or more transmitting units and one or more receiving units communicating over a wireless communication network. A signal generated at one of the transmitting units is modified via the channel statistics dependent frequency hopping pattern as generated via one of the receiving units for improved signal accuracy and avoiding interferer detection and/or interference hits.

The estimation and mitigation of swept-tone interferers includes receiving a composite signal comprising a signal of interest and a swept-tone interferer over an observation bandwidth or a hop bandwidth in a frequency-hopping system. The estimation of the interfering signal may be based on modeling the interferer as a magnitude periodic signal comprising non-overlapping, contiguous epochs, where each epoch may comprise a common pulse shape and a distinct phase rotation. The modeling may be based over the observation bandwidth, the hop bandwidth, or after combining the signal over all the frequency hop bandwidths. The period of the magnitude-periodic signal may be initially determined, and the common pulse shape and each of the distinct phase rotations may then be estimated. These estimates may be used to reconstruct an estimate of the swept-tone interferer, which may be subtracted from the composite signal to generate an interference-mitigated signal of interest.

According to one embodiment is a method in a hub of a first wireless body area network (WBAN). The first WBAN includes the hub and at least one sensor node. The hub is configured to wirelessly communicate with the at least one sensor node on a first frequency channel and the method comprises: receiving a retention index of a second WBAN operating on the first frequency channel, wherein a retention index is a measure of the operational characteristics of the respective WBAN; comparing the retention index of the second WBAN with a retention index of the first WBAN; and changing the wireless communication behaviour of the first WBAN if the retention index of the first WBAN is lower than the retention index of the second WBAN.

A spatio-temporal signal monitoring system includes a sampler configured to receive a radio frequency signal and obtain first compressive sensing measurements of said received signal at a first resolution level, and a signal detector configured to identify at least one signal of interest based on said first compressive sensing measurements and perform second compressive sensing measurements on said at least one signal of interest at a second resolution level, said second resolution level being higher than said first resolution level. The received signal may be analyzed as an array or image having two or more dimensions, based on frequency and on at least one other parameter, such as angle-of arrival, and may be analyzed at a higher level of resolution at the frequencies and angles corresponding to a signal of interest (SOI). Estimates of the frequency and/or the at least one other parameter may be generated by the system. The system may be used to monitor a wideband RF spectrum and/or track signals, such as frequency-hopping signals.

A system and method for generating a channel statistics dependent frequency hopping pattern that requires low computational complexity and simultaneously maximizes channel capacity and minimizes the symbol error rate or bit error rate under partial band tone interference and Rician or other fading environments. The system includes one or more transmitting units and one or more receiving units communicating over a wireless communication network. A signal generated at one of the transmitting units is modified via the channel statistics dependent frequency hopping pattern as generated via one of the receiving units for improved signal accuracy and avoiding interferer detection and/or interference hits.

Methods, systems, and devices are described for coordinating a device to device (D2D) hopping scheme with a wide area network (WAN) hopping scheme. In one aspect, a method may include identifying, by a base station, a WAN frequency hopping scheme. The base station may coordinate a D2D frequency hopping scheme a D2D enabled user equipment (UE) with the identified WAN frequency hopping scheme, and communicate the D2D frequency hopping scheme to the D2D enabled UE. In one aspect, the D2D frequency hopping pattern may apply to retransmissions between two D2D enabled UEs. Another method may include receiving, by a D2D enabled UE, a D2D frequency hopping scheme from a base station, where the D2D frequency hopping scheme is coordinated with a WAN frequency hopping scheme. The D2D enabled UE may transmit at least one message to a second D2D enabled UE according to the D2D frequency hopping scheme.

The present disclosure provides a method in a base station for resource configuration for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions for a User Equipment (UE) and a corresponding UE. The base station transmits resource configuration for the D2D SA and/or D2D data transmissions to the UE. Frequency hopping schemes for the D2D SA and/or D2D data transmissions within one subframe or between subframes are predefined at network side. The UE obtains schemes for D2D SA and/or D2D data transmissions in time domain based on the resource configuration for the D2D SA and/or D2D data transmissions transmitted from the base station. The UE obtains schemes for D2D SA and/or D2D data transmissions in time domain based on the frequency hopping schemes for the D2D SA and/or D2D data transmissions within one subframe or between subframes are predefined the at network side.

A signal acquisition device includes a signal channelizer module and a signal processing module. The signal channelizer module is configured to channelize an incoming signal from a moving platform into a first plurality of channels across a first range of frequencies to produce a first channelized signal, to channelize the first channelized signal into a second plurality of channels across a second range of frequencies to produce a second channelized signal, and to store the second channelized signal into a memory. The signal processing module is configured to retrieve the second channelized signal from the memory and search the second channelized signal for a signal of interest.

An example frequency hopping transceiver includes one or more antennas, a transmitter digital oscillator, transmitter correlation circuitry, a receiver digital oscillator, and receiver correlation circuitry. The transmitter correlation circuitry is communicatively coupled to the transmitter digital oscillator and to the antennas, and is configured to spread, based on transmitter oscillation signals, transmit signals over transmit channels to create frequency-hopped transmit signals that are provided to the antennas. The receiver correlation circuitry is communicatively coupled to the receiver digital oscillator and to the antennas, and is configured to: de-spread the frequency-hopped data signals; spread, based on the receiver oscillation signals, one or more narrow-band interference signals included in received signals over a group of receive channels to create frequency-hopped interference signals, where the receive channels are orthogonal to the transmit channels; and filter out the frequency-hopped interference signals from the de-spread data signals.