Energy efficient downlink massive MIMO: Is 1-bit quantization a solution ?

Abstract : Massive MIMO aims to build wireless base stations with hundreds of coherently operating antennas serving tens of single antenna users in order to improve both the transmission capacity by a factor 10-50 and the energy-efficiency trade-off by up to a thousand times. Pre-coding at the base station has been proposed to efficiently implement digital beamforming. It implies a high signal dynamic range and therefore a power backoff resulting in less energy-efficiency. One-bit quantized Zero-Forcing precoding has been proposed to efficiently handle the RF front-end when the array is implemented with so many antennas. In this paper, we analyze the energy-efficiency of the quantized Zero-Forcing precoded systems for a large number of users and a massive MIMO base station.
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https://hal.archives-ouvertes.fr/hal-02189110
Contributor : Alexandre Marcastel <>
Submitted on : Friday, July 19, 2019 - 9:32:09 AM
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Alexandre Marcastel, Inbar Fijalkow, Lee Swindlehurst. Energy efficient downlink massive MIMO: Is 1-bit quantization a solution ?. International Symposium on Wireless Communication Systems, Aug 2019, Oulu, Finland. ⟨hal-02189110⟩

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