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Conference Papers Year : 2022

Full-Duplex Non-Coherent Communications for Massive MIMO Systems with Analog Beamforming

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Abstract

In this paper, a novel full-duplex non-coherent (FD-NC) transmission scheme is developed for massive multiple-input multiple-output (mMIMO) systems using analog beamforming (ABF). We propose to use a structured Grassmannian constellation for the non-coherent communications that does not require channel estimation. Then, we design the transmit and receive ABF via the slow time-varying angle-of-departure (AoD) and angle-of-arrival (AoA) information, respectively. The ABF design targets maximizing the intended signal power while suppressing the strong self-interference (SI) occurred in the FD transmission. Also, the proposed ABF technique only needs a single transmit and receive RF chain to support large antenna arrays, thus, it reduces hardware cost/complexity in the mMIMO systems. It is shown that the proposed FD-NC offers a great improvement in bit error rate (BER) in comparison to both half-duplex noncoherent (HD-NC) and HD coherent schemes. We also observe that the proposed FD-NC both reduces the error floor resulted from the residual SI in FD transmission, and provides lower BER compared to the FD coherent transmission.
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Dates and versions

hal-03759557 , version 1 (30-08-2022)

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Asil Koc, Ahmed Masmoudi, Tho Le-Ngoc. Full-Duplex Non-Coherent Communications for Massive MIMO Systems with Analog Beamforming. ICC 2022: IEEE International Conference on Communications, May 2022, Seoul, South Korea. pp.4667-4672, ⟨10.1109/icc45855.2022.9838776⟩. ⟨hal-03759557⟩
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