Method for maximizing throughput of two-way relay system in multi-pair user scene facing unmanned aerial vehicle platform

• Main Authors: ZHANG RUONAN, CONG JIAYI, CUI JINBAO, LI BIN, GUO XIANZHEN
• Format: Patent
• Language: Chinese; English
• Published: 16.12.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

The invention relates to an unmanned aerial vehicle platform-oriented throughput maximization method in a two-way relay system in a multi-pair user scene, which can provide reliable and high-speed secure transmission guarantee for legal network users in a multi-user access network. Firstly, a two-way relay system supported by the unmanned aerial vehicle is provided, wherein the unmanned aerial vehicle relay assists information exchange among multiple pairs of ground users. Secondly, a mixed integer non-convex plan is formulated, and the minimum average rate of the ground users is maximized by jointly optimizing transmission scheduling parameters, the transmission power of the unmanned aerial vehicle and the ground users and the trajectory of the unmanned aerial vehicle; and finally, respectively solving non-convex uplink and downlink transmission scheduling and unmanned aerial vehicle trajectory optimization by adopting a branch and bound method and a successive convex approximation technology. The throughput