Comparative Analysis of Channel Capacities in 6G Networks: Massive MIMO, Millimeter-wave and Terahertz Channels

In the exploration of channel capacities within 6G networks, a comparative analysis has been conducted on Massive MIMO, Millimeter-wave, and Terahertz communication channels. The study reveals that, in terms of capacity, both Millimeter-wave and Terahertz channels demonstrate slightly elevated capacities in comparison to Massive MIMO. However, it is noteworthy that all three channels exhibit promising capabilities for facilitating high- capacity wireless communication in advanced. The research reveals that Millimeter-wave and Terahertz frequency bands exhibit slightly greater average channel capacities compared to Massive MIMO, showcasing potential for high-capacity wireless communication. Terahertz technology operates at frequencies exceeding 300 GHz, providing exceptionally wide bandwidths and rapid data transmission speeds, making it well-suited for applications demanding substantial throughput. On the other hand, Millimeter-wave technology, operating within the 30 GHz to 300 GHz range, facilitates accelerated data transfer rates due to its broader bandwidth availability, making it particularly suitable for high-capacity uses such as advanced 5G services. While Massive MIMO systems, which employ multiple antennas at the base station, enhance spectral efficiency and capacity, they achieve only a moderate data rate per unit bandwidth.