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Design and Synchronization Procedures of a D&F Co-Operative 5G Network Based on SDR Hardware Interface: Performance
Randy Verdecia-Peña1,2, José I Alonso1,2
1Information Processing and Telecommunications Center, Universidad Politécnica de Madrid, 28040 Madrid, Spain.
Sensors (Basel, Switzerland)
|February 15, 2022
Summary
This study introduces a decode-and-forward (D&F) cooperative 5G network using software-defined radio (SDR) for improved performance. The D&F protocol enhances key performance indicators (KPIs) in outdoor-to-indoor 5G communications.
Area of Science:
- Wireless Communication Engineering
- Telecommunications
- Signal Processing
Background:
- Software-defined radio (SDR) offers a flexible and cost-effective platform for wireless system development.
- 5G networks, particularly millimeter-wave (mmWave) deployments, are advancing with 3GPP Release 16 standardization.
- Cooperative networking is crucial for enhancing future 5G and 6G wireless systems.
Purpose of the Study:
- To propose and evaluate a decode-and-forward (D&F) cooperative hardware network for 5G systems.
- To design and implement a testbed utilizing SDR and Matlab for 5G downlink signal transmission.
- To assess the performance of the D&F protocol in an outdoor-to-indoor scenario.
Main Methods:
- Development of a D&F relay node based on MIMO Layer 2 relay technology.
- Implementation of a testbed on an SDR platform with Matlab for 5G downlink channels (PBCH, PDCCH, PDSCH, DL-SCH).
- Measurement of Key Performance Indicators (KPIs) including Error Vector Magnitude (EVM), Bit Error Rate (BER), and throughput for 64-QAM and 256-QAM modulation schemes.
Main Results:
- The D&F cooperative 5G network demonstrated substantially improved KPIs compared to direct communication.
- Performance was evaluated in an outdoor-to-indoor communication scenario.
- The D&F protocol exhibited comparable or better performance than commercial equipment.
Conclusions:
- The proposed D&F cooperative 5G network is a key technology for future wireless networks.
- The SDR-based testbed effectively validates 5G downlink signal transmission and D&F protocol performance.
- The D&F protocol offers significant advantages for improving 5G network KPIs, especially in challenging environments.
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