Trajectory and User Assignment Design for UAV-Assisted Wireless Communications under Rician Fading Channels

IEEE/CIC International Conference on Communications in China (ICCC), pp. 1–6

Abstract

In this paper, we focus on an unmanned aerial vehicle (UAV) assisted communication network, where a UAV is dispatched to transmit date to multi-ground-devices (GDs). We provide a fairness-aware design on UAV trajectory and user assignment, intending to maximize the minimal throughput, while a practical Rician fading model is taken into account. To address the non-convex formulated problem with infinite variables, we first apply the successive-hover-and-fly (SHF) structure, helping to reformulate the problem a finite variables problem. Although the new problem is still highly non-convex, we apply the successive convex approximation (SCA) technique where a set of tight concave functions are constructed, approximating the reformulated problem into a convex form, based on which, an iterative algorithm is enabled to solve the reformulated problem to obtain an efficient solution. Finally, numerical results are provided to validate the high performance of our proposed algorithm in throughput and algorithm computing time cost.

Authors 4

1. Peng Wu Aachen INDA Institute

   Wuhan University · RWTH Aachen University

   Affiliation as printed

   Wuhan University,School of Electronic Information,China

   INDA Institute, RWTH Aachen University, Germany

   School of Electronic Information, Wuhan University, China

2. Xiaopeng Yuan Aachen INDA Institute

   Wuhan University · RWTH Aachen University

   Affiliation as printed

   Wuhan University,School of Electronic Information,China

   INDA Institute, RWTH Aachen University, Germany

   School of Electronic Information, Wuhan University, China

3. Yulin Hu Aachen INDA Institute

   Wuhan University · RWTH Aachen University

   Affiliation as printed

   Wuhan University,School of Electronic Information,China

   INDA Institute, RWTH Aachen University, Germany

   School of Electronic Information, Wuhan University, China

4. Anke Schmeink Aachen INDA Institute

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University,INDA Institute,Germany

   INDA Institute, RWTH Aachen University, Germany