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Showing 1 to 3 of 3 for “"beamform"”.

  1. Dynamic Metasurface Grouping for IRS Optimization in Massive MIMO Communications

    … use implementable optimized phase shifts that beamform a reflected signal around channel blockages, and because they are passive devices, they have the benefit of having low cost and low power consumption. Previous works have concluded that IRSs need several hundred elements to outperform …

    ku Repository record for Dynamic Metasurface Grouping for IRS Optimization in Massive MIMO Communications (opens in a new tab)

  2. Protocols for multi-antenna ad-hoc wireless networking in interference environments

    … the use of multiple transmit antennas to beamform to the target receiver. Secondly, 'channel stuffing' is achieved through the use of a control channel that is orthogonal in time to the data channel, where nodes contend in order to participate on the data channel. And thirdly, 'channel …

    mit Repository record for Protocols for multi-antenna ad-hoc wireless networking in interference environments (opens in a new tab)

  3. Sensor Array Processing with Manifold Uncertainty

    <p>The spatial spectrum, also known as a field directionality map, is a description of the spatial distribution of energy in a wavefield. By sampling the wavefield at discrete locations in space, an estimate of the spatial spectrum can be derived using basic wave propagation models. The observable …

    duke Repository record for Sensor Array Processing with Manifold Uncertainty (opens in a new tab)