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Hybrid Beamforming for Bidirectional Massive MIMO Full Duplex Under Practical Considerations

Abstract : In-band Full-Duplex (FD) is a promising wireless transmission technology allowing to increase data rates by up to a factor of two, via simultaneous transmission and reception, but with a potential to increase system throughput even much more in cognitive radio and random access systems thanks to simultaneous transmission and sensing. In this work, we consider a practical hybrid beamforming design for a bidirectional massive MIMO FD system under the joint per-antenna and sum-power constraints. Moreover, we consider non-ideal circuitry in the transmit and receive chains, which is modelled with the limited dynamic range (LDR) noise model. The per-antenna power constraints take into account the actual physical limits of the power amplifiers and the sum-power constraints are imposed to limit the total transmit power. The precoders are optimized with alternating optimization by using the minorization-maximization approach. Simulation results show significant performance improvement compared to a traditional bidirectional half-duplex system.
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Submitted on : Thursday, February 17, 2022 - 5:24:19 PM
Last modification on : Monday, February 28, 2022 - 8:13:15 AM
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Chandan Kumar Sheemar, Dirk Slock. Hybrid Beamforming for Bidirectional Massive MIMO Full Duplex Under Practical Considerations. VTC Spring 2021, IEEE 93rd Vehicular Technology Conference, Apr 2021, Helsinki, Finland. pp.1-5, ⟨10.1109/VTC2021-Spring51267.2021.9448636⟩. ⟨hal-03579031⟩



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