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Outage Analysis of the Power Splitting Based Underlay Cooperative Cognitive Radio Networks
Phu Tran Tin1, Van-Duc Phan2, Tan N Nguyen3
1Faculty of Electronics Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam.
This study analyzes simultaneous wireless information and power transfer (SWIPT) in cooperative cognitive radio networks (CCRNs). Findings show increasing transmit power and relays improves outage probability performance.
Area of Science:
- Wireless communication networks
- Information theory
- Energy harvesting
Background:
- Cooperative cognitive radio networks (CCRNs) traditionally manage interference.
- Simultaneous wireless information and power transfer (SWIPT) introduces energy harvesting constraints.
- SWIPT in CCRNs presents unique challenges due to correlated random variables and increased complexity.
Purpose of the Study:
- To investigate the performance of SWIPT-based CCRNs.
- To derive closed-form expressions for outage probability (OP) under partial relay selection.
- To analyze the impact of key parameters on network performance.
Main Methods:
- Mathematical analysis to derive closed-form expressions for outage probability.
- Opportunistic partial relay selection strategy.
- Monte Carlo simulations for validation and parameter analysis.
Main Results:
- Closed-form expressions for outage probability were successfully derived.
- SWIPT-enabled transmitters' power is constrained by harvested energy, increasing complexity.
- Monte Carlo simulations confirmed the analytical results.
Conclusions:
- Increasing transmit power and the number of relays positively impacts outage probability in SWIPT-based CCRNs.
- The study provides valuable insights into optimizing SWIPT-enabled CCRN performance.
- Further research can explore advanced relaying strategies and energy efficiency.
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