Abstract: According to an example, signal transmissions by a first antenna apparatus and a second antenna apparatus connected to a central processing apparatus through an Ethernet switch may be synchronized with respect to each other. An Ethernet packet containing first data and second data may be generated, in which the first antenna apparatus is to wirelessly transmit the first data and the second antenna apparatus is to wirelessly transmit the second data. In addition, the Ethernet packet may be communicated to the Ethernet switch, in which the Ethernet switch includes a first port that is in communication with the first antenna apparatus and a second port that is in communication with the second antenna apparatus, and the Ethernet switch is to communicate the Ethernet packet through the first port and a copy of the Ethernet packet through the second port substantially simultaneously with respect to each other.

Abstract: Data is transmitted over a wireless network by encoding data using a rateless code. A multi-cast signal is wirelessly transmitted to communicate the encoded data for any one or more receivers. The wireless transmission is performed in a manner that is agnostic as to a number of antennas that are utilized by each of the one or more receivers.

Abstract: According to an example, a distributed antenna system includes a central processing apparatus and a plurality of antenna apparatuses connected to the central processing apparatus via Ethernet cables through an Ethernet switch. The plurality of antenna apparatuses are spatially distributed with respect to each other and the central processing apparatus is to communicate Ethernet packets to the plurality of antenna apparatuses. In addition, the plurality of antenna apparatuses are to wirelessly transmit signals corresponding to data contained in the Ethernet packets in a substantially coordinated and synchronized manner with respect to each other.

Abstract: A wireless access point includes a wireless interface to send or receive frames in a cell in a wireless network. A storage device stores a cell ID that uniquely identifies the wireless access point. Processing circuitry inserts the cell ID in a physical layer header of a frame, and sends the frame to a client device in the cell via the wireless interface.

Abstract: A distinguished node is dynamically selected from a subset of nodes in a wireless network. Data samples from the subset of nodes are received in view of the distinguished node status. At least one estimate is generated from the data samples and the data samples are compressed conditioned on the estimate.

Abstract: According to an example, a distributed antenna system includes a central processing apparatus and a plurality of antenna apparatuses connected to the central processing apparatus via Ethernet cables through an Ethernet switch. The plurality of antenna apparatuses are spatially distributed with respect to each other and the central processing apparatus is to communicate Ethernet packets to the plurality of antenna apparatuses. In addition, the plurality of antenna apparatuses are to wirelessly transmit signals corresponding to data contained in the Ethernet packets in a substantially coordinated and synchronized manner with respect to each other.

Abstract: According to an example, signal transmissions by a first antenna apparatus and a second antenna apparatus connected to a central processing apparatus through an Ethernet switch may be synchronized with respect to each other. An Ethernet packet containing first data and second data may be generated, in which the first antenna apparatus is to wirelessly transmit the first data and the second antenna apparatus is to wirelessly transmit the second data. In addition, the Ethernet packet may be communicated to the Ethernet switch, in which the Ethernet switch includes a first port that is in communication with the first antenna apparatus and a second port that is in communication with the second antenna apparatus, and the Ethernet switch is to communicate the Ethernet packet through the first port and a copy of the Ethernet packet through the second port substantially simultaneously with respect to each other.

Abstract: Data is transmitted over a wireless network by encoding data using a rateless code. A multi-cast signal is wirelessly transmitted to communicate the encoded data for any one or more receivers. The wireless transmission is performed in a manner that is agnostic as to a number of antennas that are utilized by each of the one or more receivers.

Abstract: The present disclosure is directed to networks having reduced power consumption characteristics and associated methods. In one aspect, a method for reducing power consumption in a multi-hop network can include receiving data at a plurality of primary nodes in a multi-hop network and transmitting the data from the plurality of primary nodes to a plurality of secondary nodes. Individual primary nodes have nearest neighbors at a defined distance and the secondary nodes are spaced at a distance that is greater than the defined distance away from individual primary nodes. Data is transmitted from a given primary node to a secondary node by skipping at least one intervening node and reducing power consumption of the wireless network.

Abstract: A method for extrapolating channel state information (“CSI”) estimates from multiple packets sent over different channels to generate a combined CSI estimate for a MIMO-OFDM system is disclosed. Packets are received on an m×n×Wi channel configuration, wherein m is the number of receive antennas used to receive the packets, n is the number of transmit antennas used to transmit the packets, and Wi is the number of OFDM channels for a packet i in the MIMO-OFDM system. CSI estimates are generated for the received packets and the CSI estimates are extrapolated to generate a combined CSI estimate for an m×n×R channel configuration, wherein R>Wi.

Abstract: A hybrid platform for a software defined radio (SDR) includes a receive/transmit antenna, a radio frequency (RF) frontend, a baseband processor, and a SDR positioned along a signal path that couples the antenna, the RF frontend, and the baseband processor. The SDR includes a transmit processing chain, a receive processing chain, and a FPGA that includes control logic to reduce distortion caused by signal transmission within the SDR.

Abstract: A method of synchronizing sensor data using timestamps and interpolation. The method includes receiving sequences of time-stamped data indicative of physical events from each of a plurality of sensors; generating an interpolation filter according to desired sampling times; and interpolating the sequences of time-stamped data with the generated filter to obtain sequences of data that are synchronized.

Abstract: A wireless access point includes a wireless interface to send or receive frames in a cell in a wireless network. A storage device stores a cell ID that uniquely identifies the wireless access point. Processing circuitry inserts the cell ID in a physical layer header of a frame, and sends the frame to a client device in the cell via the wireless interface.

Abstract: A computing device can determine a radio frequency (RF) bandwidth in which one or more frames are to be transmitted by the computing device. The RF bandwidth is within the operating transmission bandwidth of the computing device. A signal interference having an interference bandwidth can interfere with the transmission of the one or more frames. In response to detecting the signal interference, one or more frames can be transmitted within the operating transmission bandwidth and not within the interference bandwidth.

Abstract: Embodiments herein relate to transferring control of a frequency channel between wireless access points (WAP) according to a sequence where the frequency channel is part of an industrial, scientific and medical (ISM) radio band. Each of the WAPs transfers control of the same frequency channel according to a sequence. The transfer of control in the sequence occurs between adjacent WAPs, and the first and last WAPs in the sequence are adjacent to each other.

Abstract: A method for extrapolating channel state information (“CSI”) estimates from multiple packets sent over different antennas to generate a combined CSI estimate for a MIMO-OFDM system is disclosed. Packets are received on m×ni×W channel configurations, wherein m is the number of receive antennas used to receive the packets, ni is the number of transmit antennas used to transmit the packet indexed with i, and W is the number of OFDM channels in the MIMO-OFDM system. CSI estimates are generated for the received packets and the CSI estimates are extrapolated to generate a combined CSI estimate for an m×q×W channel configuration, wherein q>ni for all i.

Abstract: A computing device can determine a radio frequency (RF) bandwidth in which one or more frames are to be transmitted by the computing device. The RF bandwidth is within the operating transmission bandwidth of the computing device. A signal interference having an interference bandwidth can interfere with the transmission of the one or more frames. In response to detecting the signal interference, one or more frames can be transmitted within the operating transmission bandwidth and not within the interference bandwidth.

Abstract: A method of reducing noise in a sequence of data by linear and non-linear estimation. The method includes receiving a noisy sequence of data indicative of a sequence of physical events; applying a non-linear technique to the noisy sequence to obtain an approximation of a noise-free sequence of data; subtracting the approximation from the noisy sequence to obtain an estimate of noise in the noisy sequence of data; applying a linear technique to the estimate of noise to obtain a filtered sequence; and adding the filtered sequence to the approximation of the noise-free sequence to obtain a reduced-noise sequence of data indicative of the sequence of physical events.

Abstract: A method of synchronizing sensor data using timestamps and interpolation.

Abstract: A method of reducing noise in a sequence of data by linear and non-linear estimation. The method includes receiving a noisy sequence of data indicative of a sequence of physical events; applying a non-linear technique to the noisy sequence to obtain an approximation of a noise-free sequence of data; subtracting the approximation from the noisy sequence to obtain an estimate of noise in the noisy sequence of data; applying a linear technique to the estimate of noise to obtain a filtered sequence; and adding the filtered sequence to the approximation of the noise-free sequence to obtain a reduced-noise sequence of data indicative of the sequence of physical events.