TY - JOUR T1 - Energy Efficiency Maximization for UAV-Enabled Hybrid Backscatter-Harvest-then-Transmit Communications JO - IEEE Transactions on Wireless Communications PY - 2021/01/01 AU - Yang H AU - Ye Y AU - Chu X AU - Sun S ED - DO - DOI: 10.1109/twc.2021.3116509 PB - Institute of Electrical and Electronics Engineers (IEEE) SP - 1 EP - 1 Y2 - 2024/12/26 ER -