Energy-Efficiency Performance Analysis and Maximization Using Wireless Energy Harvesting in Wireless Sensor Networks
Abstract
:1. Introduction
2. System Model
2.1. Simultaneous Wireless Information and Power Transfer (SWIPT)
2.2. Energy Efficiency in Power Splitting Mode
2.3. Energy Efficiency in Time Switching Mode
3. Problem Formulation
3.1. Energy Efficiency Maximization in Power Splitting Mode
3.2. Energy Efficiency Maximization in Time Switching Mode
3.3. Optimal Solution of Power Splitting Mode
Algorithm 1: Dinkelbach’s algorithm |
1 Initialization: 2 3 while () do 4 ; 5 ; 6 ; 7 8 endwhile |
Algorithm 2: Proposed iterative power splitting algorithm |
1 Initialization: input parameters 2 and 3 while () do 4 5 while () do 6 ; 7 Calculate optimal value of 8 Calculate optimal value of 9 Update: ; 10 Update: ; 11 Update: ; 12 endwhile 13 By using and , calculate optimal value of 14 15 endwhile |
3.4. Optimal Solution of Time Switching Mode
Algorithm 3: Proposed iterative time switching algorithm |
1 Initialization: input parameters 2 and ; 3 while () do 4 ; 5 while () do 6 ; 7 Calculate optimal value of 8 Update: ; 9 Update: ; 10 Update: ; 11 endwhile 12 ; 13 while () do 14 15 Calculate optimal value of 16 Update: ; 17 Update: ; 18 Update: ; 19 Update: ; 20 endwhile 21 By using and , calculate optimal value of 22 ; 23 endwhile |
3.5. Effective-Throughput in Power Splitting Mode
3.6. Effective-Throughput in Time Switching Mode
4. Numerical Results
4.1. Algorithm Convergence and Energy Efficiency in Power Splitting Mode
4.2. Effective Throughput and Outage Target Rate in Power Splitting Mode
4.3. Algorithm Convergence and Energy Efficiency in Time Switching Mode
4.4. Effective Throughput and Outage Target Rate in Time Switching Mode
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Masood, Z.; Jung, S.P.; Choi, Y. Energy-Efficiency Performance Analysis and Maximization Using Wireless Energy Harvesting in Wireless Sensor Networks. Energies 2018, 11, 2917. https://doi.org/10.3390/en11112917
Masood Z, Jung SP, Choi Y. Energy-Efficiency Performance Analysis and Maximization Using Wireless Energy Harvesting in Wireless Sensor Networks. Energies. 2018; 11(11):2917. https://doi.org/10.3390/en11112917
Chicago/Turabian StyleMasood, Zaki, Sokhee P. Jung, and Yonghoon Choi. 2018. "Energy-Efficiency Performance Analysis and Maximization Using Wireless Energy Harvesting in Wireless Sensor Networks" Energies 11, no. 11: 2917. https://doi.org/10.3390/en11112917