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Adaptive Beam Splitting-Based Broadband Hybrid Precoding for Terahertz Massive MIMO.

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  • 1School of Integrated Circuits, Anhui University, Hefei 230601, China.

Sensors (Basel, Switzerland)
|February 28, 2023
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Summary

This study introduces a novel broadband hybrid precoding (HP) technique for Terahertz massive MIMO maritime communication. The new method reduces beam training overhead and enhances energy efficiency for mobile users.

Keywords:
beam aggregationbeam splittingbeam trackingbroadband hybrid precodingterahertz massive MIMO

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Area of Science:

  • Wireless communication
  • Antenna systems
  • Signal processing

Background:

  • Terahertz (THz) massive MIMO systems offer significant potential for maritime local area networks (LANs).
  • Existing hybrid precoding (HP) methods face challenges with high beam training overhead and beam splitting during aggregation.

Purpose of the Study:

  • To propose a novel broadband hybrid precoding (HP) technique for THz massive MIMO in maritime communication.
  • To address the limitations of excessive beam training overhead and beam splitting in current systems.

Main Methods:

  • Introduced an additional delayer between phase shifters and antennas in a sub-connected HP structure.
  • Precisely designed time delays and phase shifts to create flexible and controllable broadband beams.

Main Results:

  • The proposed HP method effectively generates broadband beams with controllable coverage.
  • Simulation results demonstrate fast-tracking capabilities for multiple mobile users.
  • The system achieves high energy efficiency in communication.

Conclusions:

  • The novel broadband HP technique significantly improves beam tracking and aggregation efficiency.
  • This method enhances communication performance for mobile users in maritime THz LANs.
  • The proposed solution presents a promising approach for future maritime communication systems.