Efficient 3D Positioning of UAVs and User Association Based on Hybrid PSO-K-Means Clustering Algorithm in Future Wireless Networks

Table 2

Comparison of numerical results.

Evaluation parameters	User-centric approach	Network-centric approach
Total associated users	78	93
Total bandwidth consumption (GHz)	2.39	2.34
Total sum rate (Gbps)	2.4	2.35
Users in outage (%)	22	7