UAV aided network association in space-air-ground communication networks

Wang, Jingjing, Jiang, Chunxiao, Wei, Zhongxiang, Bai, Tong, Zhang, Haijun and Ren, Yong (2019) UAV aided network association in space-air-ground communication networks. In 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings. IEEE.. (doi:10.1109/GLOCOM.2018.8647724).

Abstract

Unmanned aerial vehicles (UAVs) cooperating with satellites and base stations (BSs) constitute a space-air-ground three-tier heterogeneous network, which is beneficial in terms of both providing the seamless coverage as well as of improving the capacity for the users. However, cross-tier interference may be inevitable among these tightly embraced heterogeneous networks. In our paper, we propose a two-stage joint hovering altitude and power control solution for the resource allocation problem. Furthermore, Lagrange dual decomposition and concave-convex procedure (CCP) method are used to solve this problem. Finally, simulation results show the effectiveness of our proposed two-stage joint optimization algorithm in terms of UAV network's total throughput.

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