Trajectory and Beamforming Vector Optimization for Multi-UAV Multicast Network

Feng, Chengcheng; Zhang, Chao; Luo, Xizhao

doi:10.1109/wcsp.2019.8927982

Cited by 6 publications

(1 citation statement)

References 26 publications

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“…Therefore, they have been widely applied in wireless communications [4], [5]. In addition, some UAV-based multicast network have been proposed and studied [6]- [9]. [6] characterizes the capacity of UAV-enabled multicast channel by jointly optimizing the UAV's trajectory and power allocation.…”

Section: Introductionmentioning

confidence: 99%

Joint Placement Optimization and RNC in UAV-Based Wireless Multicast Networks

Guo

Liu

et al. 2020

2020 IEEE International Conference on Communications Workshops (ICC Workshops)

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Random network coding (RNC) is an efficient coding scheme to improve the performance of the broadband networks, especially for multimedia applications which are popular in 5G network. However, it is a challenging work to transmit the realtime media data because of the time limitation and wide band requirement. Moreover, the topology of the network changes due to users' movement, causing huge channel heterogeneity in large wireless network area. In this case, the fixed macro base station (BS) or access point may not fit the real-time user distributions. Accordingly, the UAV-based BS with high mobility can provide flexible service by adjusting it position according to users' locations to fit the dynamic topology of the network. Therefore, in this paper, we propose a UAV-based adaptive RNC (UARNC) scheme that jointly optimizes the UAV's location and RNC packet scheduling to maximize the throughput in a multicast network while guaranteeing the service quality of the bottleneck users. This problem is formulated as an optimization problem, and the greedy scheduling techniques and particle swarm optimization (PSO) algorithm are adopted to solve it. Finally, the simulation results prove the effectiveness of the proposed scheme.

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