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Revisiting Information Detection and Energy Harvesting: A Power Splitting-Based Approach.

Jaehong Kim1, Won-Yong Shin2, Xin Kang3

  • 1School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea.

Entropy (Basel, Switzerland)
|December 3, 2020
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Summary
This summary is machine-generated.

This study introduces power-splitting strategies for wireless sensors to optimize harvested energy and data rates. The research focuses on maximizing energy efficiency in machine-type communications and the Internet of Things.

Keywords:
energy efficiencyenergy harvestinginformation decodingoptimal policypower-splitting

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Area of Science:

  • Wireless communication systems
  • Energy harvesting technologies
  • Sensor networks

Background:

  • Wireless sensors are crucial for machine-type communications and the Internet of Things (IoT).
  • Spectral and energy efficiency are key performance metrics for sensor networks.
  • Simultaneous information and power transfer (SWIPT) is essential for wireless sensor operation.

Purpose of the Study:

  • To develop power-splitting solutions for maximizing harvested energy under rate constraints in wireless sensors.
  • To investigate the rate-energy trade-off in SWIPT systems.
  • To enhance the efficiency of wireless sensor networks.

Main Methods:

  • Design of an optimal dynamic power-splitting policy.
  • Proposal of two single-threshold-based power-splitting policies (Policies I and II).
  • Asymptotic analysis for large numbers of packets and development of statistics-based policies.

Main Results:

  • Demonstrated effectiveness of proposed power-splitting solutions.
  • Achieved maximization of average harvested energy under a rate constraint.
  • Showcased the rate-energy trade-off optimization.

Conclusions:

  • The proposed power-splitting policies effectively balance energy harvesting and information decoding.
  • These solutions improve the overall performance of wireless sensor networks.
  • The study provides valuable insights into optimizing SWIPT for IoT applications.