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User-Driven Relay Beamforming for mmWave Massive Analog-Relay MIMO
Masashi Iwabuchi1,2, Yoghitha Ramamoorthi1, Kei Sakaguchi2
1NTT Access Network Service Systems Laboratories, Nippon Telegraph and Telephone Corporation, Yokosuka 239-0847, Japan.
Sensors (Basel, Switzerland)
|January 21, 2023
Summary
User-driven relay beamforming enhances sixth-generation mobile communication (6G) by leveraging vehicular data. This method reduces overhead and maximizes benefits from massive analog relay MIMO for future V2X applications.
Area of Science:
- Wireless communication
- Signal processing
- Mobile networks
Background:
- Sixth-generation mobile communication (6G) seeks enhanced capacity and reliability.
- Millimeter wave (mmWave) communication offers bandwidth but suffers high attenuation, limiting MIMO multiplexing.
- Analog relay nodes with beamforming can improve mmWave performance but lack beam search/tracking capabilities.
Purpose of the Study:
- To propose user-driven relay beamforming methods for 6G communication.
- To reduce control overhead associated with beam search and tracking in relay-based systems.
- To enable massive analog relay MIMO benefits in mmWave communication.
Main Methods:
- Developed user-driven relay beamforming techniques.
- Utilized Cooperative Awareness Messages (CAM) from intelligent transport systems (ITS) for relay beam control.
- Assessed performance in a vehicular-to-everything (V2X) scenario.
Main Results:
- The proposed method significantly reduces control overhead.
- Achieved benefits of massive analog relay MIMO.
- Evaluated the impact of CAM accuracy, control period, and user equipment (UE) mobility.
Conclusions:
- User-driven relay beamforming effectively reduces overhead in 6G systems.
- The method is suitable for future V2X applications.
- Demonstrated the feasibility of leveraging vehicular data for efficient wireless communication.
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