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Cooperative DF Protocol for MIMO Systems Using One-Bit ADCs.

Tae-Kyoung Kim1

  • 1Department of Electronic Engineering, Gachon University, Seongnam 13120, Korea.

Sensors (Basel, Switzerland)
|October 27, 2022
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Summary
This summary is machine-generated.

This study introduces a new detection scheme for cooperative MIMO systems with one-bit ADCs and DF relaying. The method effectively reduces error propagation, enhancing wireless communication efficiency with low complexity.

Keywords:
cooperative communicationmulti-input multi-outputone-bit ADCspairwise error probability

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Area of Science:

  • Wireless Communication Systems
  • Signal Processing
  • Information Theory

Background:

  • Cooperative communication enhances wireless systems, but relay detection errors pose challenges.
  • One-bit ADCs reduce power consumption in large-scale MIMO systems, crucial for mobile devices.
  • Non-linearity in one-bit ADC MIMO systems exacerbates detection errors in DF relay protocols.

Purpose of the Study:

  • To propose an efficient detection scheme for cooperative MIMO systems employing one-bit ADCs and a DF relay protocol.
  • To mitigate the error propagation effect inherent in such systems.
  • To analyze the performance and complexity of the proposed detection scheme.

Main Methods:

  • Derivation of the upper bound for pairwise error probability (PEP) in weighted Hamming distance form for one-bit ADCs.
  • Development of a novel detection scheme for the DF relay protocol based on the derived PEP.
  • Analysis of the computational complexity in terms of real multiplications.

Main Results:

  • The proposed detection scheme effectively mitigates error propagation in cooperative one-bit ADC MIMO systems.
  • The derived PEP provides a theoretical basis for the detection scheme's performance.
  • The method demonstrates lower complexity compared to conventional detection techniques.

Conclusions:

  • The developed detection scheme offers a practical solution for improving cooperative MIMO systems with power-efficient one-bit ADCs.
  • The research addresses key challenges in implementing cooperative communication in resource-constrained mobile devices.
  • The findings contribute to the advancement of efficient and low-complexity wireless communication technologies.