UAV Base Station Location Optimization for Next Generation Wireless Networks: Overview and Future Research Directions
Unmanned aerial vehicles mounted base stations (UAV BSs) are expected to become one of the significant components of the Next Generation Wireless Networks (NGWNs) Rapid deployment, mobility, higher chances of unobstructed propagation path, and flexibility features of UAV BSs have attracted significant attention. Despite, potentially, high gains brought by UAV BSs in NGWNs, many challenges are also introduced by them. Optimal location assignment to UAV BSs, arguably, is the most widely investigated problem in the literature on UAV BSs in NGWNs. This paper presents a comprehensive survey of the literature on the location optimization of UAV BSs in NGWNs. A generic optimization framework through a universal Mixed Integer Non Linear Programming (MINLP) formulation is constructed and the specifications of its constituents are elaborated. The generic problem is classified into a novel taxonomy. Due to the highly challenging nature of the optimization problem a range of solutions are adopted in the literature which are also covered under the aforementioned classification. Furthermore, future research directions on UAV BS location optimization in 5G and beyond non terrestrial aerial communication systems are discussed.
2019 1st International Conference on Unmanned Vehicle Systems Oman (UVS)