Low Power Consumption Signal Detector Based on Adaptive DFSD in MIMO-OFDM Systems
Abstract
:1. Introduction
2. System Model
3. Conventional Signal Detection Schemes
3.1. Maximum Likelihood Detection
3.2. Conventional Depth-First Sphere Decoding
4. Proposed Adaptive DFSD Detection Scheme
4.1. The Adaptive DFSD Detection Scheme According to the Number of Nodes at the -th Layer
4.2. The Thresholds Based on Channel Condition
5. Simulation Results
5.1. The Bit Error Rate Performance
5.2. The Complexity
6. Conclusions
Author Contributions
Acknowledgments
Conflicts of Interest
References
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Detection Scheme | Complex Multiplication Expression |
---|---|
Conventional DFSD | |
Adaptive DFSD | |
DFSD using n nodes at the top layer | |
Adaptive QRD-M | |
: the number of nodes at the i-th layer |
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Shim, S.-J.; Choi, S.-J.; Song, H.-K. Low Power Consumption Signal Detector Based on Adaptive DFSD in MIMO-OFDM Systems. Energies 2019, 12, 599. https://doi.org/10.3390/en12040599
Shim S-J, Choi S-J, Song H-K. Low Power Consumption Signal Detector Based on Adaptive DFSD in MIMO-OFDM Systems. Energies. 2019; 12(4):599. https://doi.org/10.3390/en12040599
Chicago/Turabian StyleShim, Seong-Joon, Seung-Jin Choi, and Hyoung-Kyu Song. 2019. "Low Power Consumption Signal Detector Based on Adaptive DFSD in MIMO-OFDM Systems" Energies 12, no. 4: 599. https://doi.org/10.3390/en12040599