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Novel SWIPT Schemes for 5G Wireless Networks.
Akashkumar Rajaram1,2, Rabia Khan3, Selvakumar Tharranetharan4
1School of Computer Science and Robotics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia. razharam@tpu.ru.
Sensors (Basel, Switzerland)
|March 15, 2019
Summary
This study introduces novel simultaneous wireless information and power transfer (SWIPT) schemes for 5G networks, enhancing energy harvesting and data rate fairness through advanced beamforming and modulation techniques.
Area of Science:
- Wireless communication systems engineering
- Signal processing for wireless networks
- Energy harvesting technologies
Background:
- Simultaneous Wireless Information and Power Transfer (SWIPT) is crucial for 5G networks.
- Existing SWIPT schemes face challenges in balancing information and power transfer efficiency.
- Cooperative communication systems require optimized resource allocation for relays and users.
Purpose of the Study:
- To propose and evaluate novel SWIPT schemes for 5G wireless networks.
- To enhance system performance through joint energy and data rate fairness beamforming.
- To improve energy efficiency and channel estimation accuracy in SWIPT systems.
Main Methods:
- Integration of distributed energy beamforming with data rate fairness beamforming in cooperative systems.
- Development of an energy-efficient modulation-based non-orthogonal multiple access (M-NOMA) SWIPT scheme.
- Channel response estimation using energy-harvesting signal pilots for an energy-harvesting SWIPT scheme.
Main Results:
- Demonstrated significant performance gains using joint energy and data rate fairness beamforming.
- Observed enhanced system efficiency and increased harvested energy with the M-NOMA SWIPT scheme.
- Computed optimal transmit power ratios for improved decoding accuracy under varying SNR conditions.
Conclusions:
- The proposed SWIPT schemes offer substantial improvements in 5G network performance.
- Joint beamforming and advanced M-NOMA techniques effectively enhance energy harvesting and data rates.
- Optimized pilot signal design improves channel estimation accuracy in energy-harvesting SWIPT systems.
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