2024 Volume 21 Issue 12 Pages 20240132
This letter reports on experimental results of high data rate transmissions using a sub-terahertz single-carrier (SC) transmission scheme. One requirement for 6G is achieving a data rate exceeding 100Gbps. According to Shannon’s channel capacity, the data rate is proportional to the transmission-signal bandwidth. Therefore, one approach for achieving the target data rate is to employ a sub-terahertz transmission with an ultra-wide bandwidth of over several gigahertz. To verify the feasibility of high data-rate transmission using an ultra-wide bandwidth, a SC transmission system with a carrier frequency of 141.5GHz is configured and tested in an outdoor line-of-sight environment. The configured system transmits two different wideband signals using orthogonal polarization-division multiplexing. Experimental results show that a single vertical or horizontal polarized transmission with a baud rate of 10GHz is available for the data rate of 60Gbps at the long transmission distance of 100m. Furthermore, the total data rate of 117Gbps is achieved by multiplexing two orthogonally polarized transmissions.
