| Citation: | LIU H T，LIU X C，HUANG J F，et al. Trajectory optimization of CSTBC UAV relay communication systems with no-fly zone constraints[J]. Journal of Beijing University of Aeronautics and Astronautics，2024，50（3）：729-738 （in Chinese） doi: 10.13700/j.bh.1001-5965.2022.0351
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The flight path of an UAV has a significant effect on the performance of a UAV relay communication system. To increase transmission reliability, a cooperative space-time block coding (CSTBC) UAV relay communication transmission technique with no-fly zone restrictions is suggested. The outage probability of the UAV relay communication system is theoretically derived, and the UAV flight path is optimized to minimize the system’s outage probability. The UAV relay communication system’s ergodic capacity is also presented. In addition, we established a no-fly zone and provided an evasive mechanism to ensure cooperative UAV flight safety while obtaining the channel’s diversity gain. The simulation findings demonstrate that the cooperative space-time block coding-based UAV relay communication transmission method may get the channel’s diversity gain and enhance the system’s link transmission performance.
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