Time-Instance Zero-Crossing Precoding with Quality-of-Service Constraints

Melo, Diana M. V.; Landau, Lukas T. N.; Ribeiro, Lucas N.; Haardt, Martin

doi:10.1109/ssp49050.2021.9513848

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…The study in [14] relies on a precoding technique based on the MMDDT criterion with spatial zero-forcing (ZF) precoding and TI ZX modulation, whereas [15] proposes an optimal temporalspatial precoding technique with TI ZX modulation along with an minimum mean square error (MMSE) solution. Other studies that consider novel TI ZX modulation schemes have been presented in [13], [16], [17] where the computa-tional complexity is reduced [16]. In [17] the minimization of the transmit power under quality of service constraint is considered as an objective.…”

Section: Introductionmentioning

confidence: 99%

“…Other studies that consider novel TI ZX modulation schemes have been presented in [13], [16], [17] where the computa-tional complexity is reduced [16]. In [17] the minimization of the transmit power under quality of service constraint is considered as an objective. The study in [13] investigates the spectral efficiency of MIMO systems with sequences constructed with the TI ZX modulation and RLL sequences.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

State Machine-based Waveforms for Channels With 1-Bit Quantization and Oversampling With Time-Instance Zero-Crossing Modulation

Melo¹,

Landau²,

Lamare³

2023

Preprint

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Systems with 1-bit quantization and oversampling are promising for the Internet of Things (IoT) devices in order to reduce the power consumption of the analog-to-digitalconverters. The novel time-instance zero-crossing (TI ZX) modulation is a promising approach for this kind of channels but existing studies rely on optimization problems with high computational complexity and delay. In this work, we propose a practical waveform design based on the established TI ZX modulation for a multiuser multi-input multioutput (MIMO) downlink scenario with 1-bit quantization and temporal oversampling at the receivers. In this sense, the proposed temporal transmit signals are constructed by concatenating segments of coefficients which convey the information into the time-instances of zero-crossings according to the TI ZX mapping rules. The proposed waveform design is compared with other methods from the literature. The methods are compared in terms of bit error rate and normalized power spectral density. Numerical results show that the proposed technique is suitable for multiuser MIMO system with 1-bit quantization while tolerating some small amount of out-of-band radiation.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

State Machine-based Waveforms for Channels With 1-Bit Quantization and Oversampling With Time-Instance Zero-Crossing Modulation

Melo¹,

Landau²,

Lamare³

2023

Preprint

View full text Add to dashboard Cite

show abstract

State Machine-Based Waveforms for Channels With 1-bit Quantization and Oversampling With Time-Instance Zero-Crossing Modulation

Melo,

Landau,

De Lamare

2024

IEEE Access

Self Cite

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Systems with 1-bit quantization and oversampling are promising for the Internet of Things (IoT) networks because they can reduce the power consumption of the analog-to-digital-converters in the devices. The novel time-instance zero-crossing (TI ZX) modulation is a promising approach for IoT networks and devices but existing studies rely on optimization problems with high computational complexity and delay. In this work, we propose a practical waveform design based on the established TI ZX modulation for a multiuser multi-input multi-output (MIMO) systems in the downlink scenario with 1-bit quantization and temporal oversampling at the receivers. In this sense, the proposed temporal transmit signals are constructed by concatenating segments of coefficients which convey the information into the time-instances of zero-crossings according to the TI ZX mapping rules. The proposed waveform design is compared with other methods from the literature in terms of bit error rate and normalized power spectral density. Numerical results show that the proposed technique is suitable for multiuser MIMO systems with 1-bit quantization while tolerating some small amount of out-of-band radiation.INDEX TERMS Zero-crossing precoding, Oversampling, Moore machine, 1-bit quantization.

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Zero-Crossing Precoding Techniques for Channels With 1-Bit Temporal Oversampling ADCs

Melo

Landau

Lamare

et al. 2023

IEEE Trans. Wireless Commun.

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Time-Instance Zero-Crossing Precoding with Quality-of-Service Constraints

Cited by 3 publications

References 12 publications

State Machine-based Waveforms for Channels With 1-Bit Quantization and Oversampling With Time-Instance Zero-Crossing Modulation

State Machine-based Waveforms for Channels With 1-Bit Quantization and Oversampling With Time-Instance Zero-Crossing Modulation

State Machine-Based Waveforms for Channels With 1-bit Quantization and Oversampling With Time-Instance Zero-Crossing Modulation

Zero-Crossing Precoding Techniques for Channels With 1-Bit Temporal Oversampling ADCs

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