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Outage Performance of SWIPT-D2D-Based Hybrid Satellite-Terrestrial Networks
Zhen Li1, Jian Xing1, Jinhui Hu1
1College of Computer and Control Engineering, Northeast Forestry University, Harbin 150040, China.
Sensors (Basel, Switzerland)
|April 26, 2025
Summary
This study explores simultaneous wireless information and power transfer (SWIPT) in hybrid satellite-terrestrial networks, enhancing device-to-device communication for energy-constrained users. The research provides outage performance analysis for sustainable energy harvesting and data transmission.
Area of Science:
- Wireless communication networks
- Information theory
- Energy harvesting technologies
Background:
- Hybrid satellite-terrestrial networks (HSTNs) face challenges with energy-constrained terrestrial user terminals (UTs).
- Device-to-device (D2D) communication requires reliable energy sources for shadowed Internet of Things (IoT) devices.
- Simultaneous wireless information and power transfer (SWIPT) offers a solution for sustainable energy and data transmission.
Purpose of the Study:
- To investigate the outage performance of SWIPT-assisted D2D-based HSTNs.
- To analyze the impact of different SWIPT schemes (power splitting and time switching) on system performance.
- To derive closed-form expressions for outage probability in complex fading environments.
Main Methods:
- Modeling of a hybrid satellite-terrestrial network with an energy-constrained UT, an amplify-and-forward (AF) relay, and shadowed IoT devices.
- Application of power splitting (PS)-based and time switching (TS)-based SWIPT-D2D schemes.
- Mathematical derivation of outage probability (OP) expressions considering shadowed Rician and Nakagami-m fading channels.
- Validation of theoretical results using Monte Carlo simulations.
Main Results:
- Closed-form expressions for the outage probability (OP) of both the user terminal (UT) and the Internet of Things (IoT) device were derived.
- The performance analysis quantifies the impact of SWIPT schemes on the reliability of D2D communication in HSTNs.
- Theoretical findings were confirmed through extensive Monte Carlo simulations, demonstrating accuracy.
Conclusions:
- The derived outage probability expressions provide valuable insights into the performance of SWIPT-assisted D2D-based HSTNs.
- The study validates the effectiveness of PS-based and TS-based SWIPT schemes for sustainable energy and information transfer.
- This research contributes to the design and optimization of future wireless networks with integrated energy and data services.
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