Low Power Analog Processing for Ultra-High-Speed Receivers with RF Correlation

Article


Lota, J. and Demosthenous, A. 2023. Low Power Analog Processing for Ultra-High-Speed Receivers with RF Correlation. IEEE Access. 11, pp. 37944-37957. https://doi.org/10.1109/ACCESS.2023.3253042
AuthorsLota, J. and Demosthenous, A.
Abstract

Ultra-high-speed data communication receivers (Rxs) conventionally require analog digital converters (ADC)s with high sampling rates which have design challenges in terms of adequate resolution and power. This leads to ultra-high-speed Rxs utilising expensive and bulky high-speed oscilloscopes which are extremely inefficient for demodulation, in terms of power and size. Designing energy-efficient mixed-signal and baseband units for ultra-high-speed Rxs requires a paradigm approach detailed in this paper that circumvents the use of power-hungry ADCs by employing low-power analog processing. The low-power analog Rx employs direct-demodulation with RF correlation using low-power comparators. The Rx is able to support multiple modulations with highest modulation of 16-QAM reported so far for direct-demodulation with RF correlation. Simulations using Matlab, Simulink R2020a® indicate sufficient symbol-error rate (SER) performance at a symbol rate of 8 GS/s for the 71 GHz Urban Micro Cell and 140 GHz indoor channels. Power analysis undertaken with current analog, hybrid and digital beamforming approaches requiring ADCs indicates considerable power savings. This novel approach can be adopted for ultra-high-speed Rxs envisaged for beyond fifth generation (B5G)/sixth generation (6G)/ terahertz (THz) communication without the power-hungry ADCs, leading to low-power integrated design solutions.

KeywordsAnalog-processing; Beyonf fifth-generation (B5G); RF-correlation; THz; Ultra-high-speed
JournalIEEE Access
Journal citation11, pp. 37944-37957
ISSN2169-3536
Year2023
PublisherIEEE
Publisher's version
License
File Access Level
Anyone
Digital Object Identifier (DOI)https://doi.org/10.1109/ACCESS.2023.3253042
Publication dates
Online06 Mar 2023
Print20 Apr 2023
Publication process dates
Accepted15 Feb 2023
Deposited14 Mar 2023
FunderEngineering and Physical Sciences Research Council
Copyright holder© 2023, The Authors
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