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Efficient On-Demand UAV Deployment and Configuration for Off-Shore Relay Communications

机译：高效的按需UV部署和配置离岸中继通信

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摘要

At present, the development and exploration of the ocean are blossoming, but the maritime communication coverage still remains limited. By deploying unmanned aerial vehicle (UAV) mounted relay nodes between shore base stations and vessel users, the off-shore communication coverage and transmission efficiency can be substantially enhanced. Considering the specific transmission characteristics of air-sea and of air-shore channels and time-varying traffic of maritime information services, we formulate a minimum-maximization optimization problem of link capacity, where both the deployment of UAV-mounted relay node and the configuration of communication resources are optimized. To address this non-convex problem, we propose a particle swarm based algorithm, which is capable of three-dimensional position, antenna direction and time slot allocation scheme joint optimization. The simulation results demonstrate the high efficiency and reliability of our proposed algorithm in diverse offshore relay scenarios with different coastal environments, vessel distributions and network traffic.
机译：目前，海洋的发展和探索是盛开的，但海上沟通覆盖率仍然存在限制。通过部署岸基站和船舶用户之间的无人机安装的继电器节点，可以大大提高偏移通信覆盖和传输效率。考虑到空中海的特定传输特性和空气岸通道以及海上信息服务的时变交通，我们配备了链路容量的最小最大化优化问题，其中UAV安装的中继节点和配置都是可以的部署通信资源进行了优化。为了解决这个非凸面问题，我们提出了一种基于粒子群的算法，其能够三维位置，天线方向和时隙分配方案联合优化。仿真结果表明，在不同沿海环境，船舶分布和网络流量的不同海上继电器场景中，我们提出了算法的高效率和可靠性。

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