Computationally efficient symbol-level precoding communications demonstrator

We present a precoded multi-user communication test-bed to demonstrate forward link interference mitigation techniques in a multi-beam satellite system scenario which will enable a full frequency reuse scheme. The developed test-bed provides an end-to-end precoding demonstration, which includes a tr...

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Bibliographic Details
Main Authors: Merlano-Duncan, J.C., Krivochiza, Jevgenij, Andrenacci, Stefano, Chatzinotas, Symeon, Ottersten, Bjorn
Format: Conference Proceeding
Language:English
Subjects:
Interference
MIMO communication
Precoding
Receivers
Satellites
Signal to noise ratio
Transmitters
Online Access:Request full text
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Summary:We present a precoded multi-user communication test-bed to demonstrate forward link interference mitigation techniques in a multi-beam satellite system scenario which will enable a full frequency reuse scheme. The developed test-bed provides an end-to-end precoding demonstration, which includes a transmitter, a multi-beam satellite channel emulator and user receivers. Each of these parts can be reconfigured accordingly to the desired test scenario. Precoded communications allow full frequency reuse in multiple-input multiple-output (MIMO) channel environments, where several coordinated antennas simultaneously transmit to a number of independent receivers. The developed real-time transmission test-bed assist in demonstrating, designing and benchmarking of the new Symbol-Level Precoding (SLP) techniques, where the data information is used, along with the channel state information, in order to exploit the multi-user interference and transform it into useful power at the receiver side. The demonstrated SLP techniques are designed in order to be computationally efficient, and can be generalized to others multi-channel interference scenarios.
ISSN:2166-9589
DOI:10.1109/PIMRC.2017.8292703