Zhao Zou Lin Han Fanrong Meng Hybrid Terahertz and Millimeter-Wave Communications for High-Capacity 6G HAPS-to-Satellite Links. IWCMC 2026 797-801 conf/iwcmc/2026 https://doi.org/10.1109/IWCMC69287.2026.11579930 db/conf/iwcmc/iwcmc2026.html#ZouHM26 streams/conf/iwcmc