Pilot-Based Uplink Power Control in Single-UE Massive MIMO Systems with 1-BIT ADCs
Ravinath, Amila; Gouda, Bikshapathi; Atzeni, Italo; Tölli, Antti (2024-01-31)
IEEE
31.01.2024
A. Ravinath, B. Gouda, I. Atzeni and A. Tölli, "Pilot-Based Uplink Power Control in Single-UE Massive MIMO Systems with 1-BIT ADCS," 2023 IEEE 9th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), Herradura, Costa Rica, 2023, pp. 281-285, doi: 10.1109/CAMSAP58249.2023.10403514.
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© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202403182274
https://urn.fi/URN:NBN:fi:oulu-202403182274
Tiivistelmä
Abstract
We propose uplink power control (PC) methods for massive multiple-input multiple-output systems with 1-bit analog-to-digital convert-ers, which are specifically tailored to address the non-monotonic data detection performance with respect to the transmit power of the user equipment (UE). Considering a single UE, we design a multi-amplitude pilot sequence to capture the aforementioned non-monotonicity, which is utilized at the base station to derive UE trans-mit power adjustments via single-shot or differential power control (DPC) techniques. Both methods enable closed-loop uplink PC using different feedback approaches. The single-shot method employs one-time multi-bit feedback, while the DPC method relies on continuous adjustments with 1-bit feedback. Numerical results demonstrate the superiority of the proposed schemes over conventional closed-loop uplink PC techniques.
We propose uplink power control (PC) methods for massive multiple-input multiple-output systems with 1-bit analog-to-digital convert-ers, which are specifically tailored to address the non-monotonic data detection performance with respect to the transmit power of the user equipment (UE). Considering a single UE, we design a multi-amplitude pilot sequence to capture the aforementioned non-monotonicity, which is utilized at the base station to derive UE trans-mit power adjustments via single-shot or differential power control (DPC) techniques. Both methods enable closed-loop uplink PC using different feedback approaches. The single-shot method employs one-time multi-bit feedback, while the DPC method relies on continuous adjustments with 1-bit feedback. Numerical results demonstrate the superiority of the proposed schemes over conventional closed-loop uplink PC techniques.
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