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引用次数: 13
摘要
在灾区上空部署多个无人机基站(drone-mounted base station, dbs),帮助移动用户(mu)与位于灾区以外的正常基站进行通信。DBSs被认为是mu和工作BSs之间的中继节点。为了缓解无线回程链路的瓶颈,我们提出了一种协作式无人机辅助移动接入网架构,使回程链路拥塞的dbs能够通过DBS-to-DBS通信将其流量分流给其他dbs(回程链路不拥塞)。在协同无人机辅助移动接入网架构背景下,提出了DBS布局与信道分配问题,并设计了一种协同DBS布局与信道分配(COACH)算法来解决该问题。通过大量的仿真验证了COACH的性能。
A Cooperative Drone Assisted Mobile Access Network for Disaster Emergency Communications
Multiple drone-mounted base stations (DBSs) are used to be deployed over a disaster struck area to help mobile users (MUs) communicate with working BSs, which are located beyond the disaster-struck area. DBSs are considered as relay nodes between MUs and working BSs. In order to relax the bottleneck in wireless backhaul links, we propose a cooperative drone assisted mobile access network architecture by enabling DBSs (whose backhaul links are congested) to offload their traffic to other DBSs (whose backhaul links are not congested) via DBS-to-DBS communications. We formulate the DBS placement and channel allocation problem in the context of the cooperative drone assisted mobile access network architecture, and design a COoperative DBS plAcement and CHannel allocation (COACH) algorithm to solve the problem. The performance of COACH is demonstrated via extensive simulations.