动态双天线时段分配协议用于UAV辅助中继系统在概率的LoS频道下
Ping Huang1, Jie Lin1, Tong Liu1
1The College of Computer Science and Cyber Security, Chengdu University of Technology, Chengdu 610059, China.
Sensors (Basel, Switzerland)
|December 31, 2025
概括
本研究引入了无人飞行器 (UAV) 辅助双向继电系统的新协议. 动态双天线时段分配协议 (DDATSAP) 提高了多个用户的通信效率和可靠性.
科学领域:
- 无线通信无线通信
- 空中网络 空中网络
- 资源管理 资源管理
背景情况:
- 无人机辅助的双向继电系统提供了更好的通信效率和可靠性.
- 现有的时间划分多重访问 (TDMA) 协议具有严格的资源分配和低效的天线管理.
- 当前系统中的简单视线 (LoS) 通道模型往往不准确,影响性能.
研究的目的:
- 为了研究一个无人机辅助的双向中继系统,使用一个更准确的概率视线 (PrLoS) 模型.
- 为灵活的天线资源分配提出一个新的动态双天线时段分配协议 (DDATSAP).
- 通过优化关键系统参数,最大限度地提高地面用户的最低平均消息速率.
主要方法:
- 开发了动态双天线时段分配协议 (DDATSAP),用于灵活地分配天线资源.
- 制定了资源调度因子 (RSF),发射功率和无人机轨迹的联合优化问题.
- 采用了一种代算法,结合连续凸近似 (SCA) 和块坐标下降 (BCD) 技术来解决非凸问题.
主要成果:
- 拟议的DDATSAP协议允许多个用户对灵活地分配天线资源.
- 对RSF,发射功率和无人机轨迹的联合优化最大限度地提高了最低平均消息速率.
- 数字模拟证实了拟议方案比基准系统的优越性能.
结论:
- 新的DDATSAP协议有效地解决了无人机辅助中继现有TDMA系统的局限性.
- PrLoS 模型提供了更准确的通信环境表示.
- 建议的优化和代算法成功地提高了无人机辅助系统的通信性能.
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