Performance analysis of α - μ distributed MIMO wireless links using coherent terahertz technology

Area of Science:

• Wireless Communications
• Terahertz Technology
• Signal Processing

Background:

• Coherent terahertz (THz) communication offers high bandwidth and low energy consumption but faces atmospheric attenuation and interference.
• Single-input single-output systems are limited in complex environments, necessitating advanced communication frameworks.

Purpose of the Study:

• To establish a coherent THz communication framework using MIMO to improve performance in complex environments.
• To analyze the impact of atmospheric turbulence and derive performance metrics like SNR, BER, and OP.

Main Methods:

• Developed a coherent THz communication framework with MIMO configuration.
• Modeled non-line-of-sight propagation and derived SNR expressions using an alpha-mu turbulence model.
• Derived BER and outage probability expressions for Maximum Ratio Combining (MRC) and Equal Gain Combining (EGC) diversity techniques.

Main Results:

• Derived SNR expressions considering static and random attenuation under alpha-mu turbulence.
• Computed BER and outage probability for MRC and EGC diversity techniques.
• Quantitatively analyzed the effects of modulation parameters, number of channels, distance, and beam width on BER and OP.

Conclusions:

• Coherent THz communication performance is enhanced by MIMO and diversity techniques.
• Bit error rate performance is positively correlated with outage probability for the studied system.
• The findings provide valuable guidance for future research and development in THz communication systems.