Reliable Transmission of Energy Harvesting Full-Duplex Relay Systems with Short-Packet Communications
Abstract
:1. Introduction
- (1)
- We investigate short-packet communications in an energy-constrained FD relay system with hardware impairments, where both antennas at the relay are employed for energy harvesting. We further explore independent and identical channels for energy harvesting.
- (2)
- We derive closed-form approximations for the overall average BLER and effective throughput under both scenarios, which characterize the impact of key system parameters on the reliable performance of the FD relay system.
- (3)
- We validate our analysis through computer simulations, which demonstrate that the proposed scheme improves the reliability and throughput of the system compared with the existing scheme in the literature at low transmission rates and transmit SNRs.
2. System Model
3. Performance Analysis
3.1. Preliminaries
3.2. Statistical Characterization of the SNRs
3.3. Overall Average BLER Under the Independent Channel
3.4. Overall Average BLER Under the Identical Channel
3.5. Effective Throughput
4. Numerical Results and Discussions
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
Abbreviations
FD | full-duplex |
RF | radio frequency |
BLER | block error rate |
SNRs | signal-to-noise-ratios |
IoT | Internet of Things |
QoS | quality-of-service |
5G | fifth-generation |
URLLC | ultra-reliable low-latency communications |
EH | energy harvesting |
RIS | reconfigurable intelligent surface |
NOMA | nonorthogonal multiple access |
SWIPT | simultaneous wireless information and power transfer |
IQ | in-phase/quadrature |
CSI | channel state information |
DF | decode-and-forward |
AWGN | additive white Gaussian noise |
probability density function | |
CDF | cumulative density function |
D-2-D | Device-to-Device |
DDPG | deep deterministic policy gradi-ent |
UAV | unmanned aerial vehicles |
AF | amplify-and-forward |
MIMO | multiple-input multiple-output |
EVMs | error vector magnitudes |
LTE | Long-Term Evolution |
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
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[20] | [22] | [24] | [25] | [28] | [30] | [31] | This Work | |
---|---|---|---|---|---|---|---|---|
FD | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
EH: | ||||||||
- EH with one antenna | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
- EH with two antennas | ✓ | |||||||
Short-packet communications | ✓ | ✓ | ✓ | ✓ | ✓ | |||
Hardware impairments | ✓ | ✓ | ✓ | ✓ | ||||
BLER | ✓ | ✓ | ✓ | ✓ | ✓ |
Symbol | Description |
---|---|
The energy conversion efficiency | |
The transmit power of S | |
The transmit power of R | |
The transmission duration of each channel | |
and | The channel coefficients from S to R |
The variances of and | |
g | The channel coefficient from R to D |
The variance of g | |
f | The self-interference channel at R |
The variance of f | |
The number of channels used for EH | |
The number of channels utilized for information transmission from S to R | |
The number of channels utilized for information transmission from R to D | |
The level of imperfections in the hardware of transmitter | |
The level of imperfections in the hardware of receiver | |
b | The number information bits transmitted from S to D |
The variance of AWGN at node i, | |
The transmission rate | |
The instantaneous BLER | |
The average BLER | |
The overall average BLER | |
G | The effective throughput |
Parameter | Value |
---|---|
Energy conversion efficiency | 0.7 |
Level of hardware impairments | |
Channel variances | dB, dB, dB |
Number of channels | , |
Noise variance | |
Complexity accuracy tradeoff parameter |
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Yang, C.; Yu, M.; Huang, J.; Chen, D.; Li, J.; Jiang, P. Reliable Transmission of Energy Harvesting Full-Duplex Relay Systems with Short-Packet Communications. Symmetry 2025, 17, 281. https://doi.org/10.3390/sym17020281
Yang C, Yu M, Huang J, Chen D, Li J, Jiang P. Reliable Transmission of Energy Harvesting Full-Duplex Relay Systems with Short-Packet Communications. Symmetry. 2025; 17(2):281. https://doi.org/10.3390/sym17020281
Chicago/Turabian StyleYang, Chenxi, Mingkang Yu, Jinshu Huang, Dechuan Chen, Jin Li, and Pei Jiang. 2025. "Reliable Transmission of Energy Harvesting Full-Duplex Relay Systems with Short-Packet Communications" Symmetry 17, no. 2: 281. https://doi.org/10.3390/sym17020281
APA StyleYang, C., Yu, M., Huang, J., Chen, D., Li, J., & Jiang, P. (2025). Reliable Transmission of Energy Harvesting Full-Duplex Relay Systems with Short-Packet Communications. Symmetry, 17(2), 281. https://doi.org/10.3390/sym17020281