Performance Optimization of High-Altitude Platform Wireless Communication Network Exploiting TVWS Spectrums Based on Modified PSO

The Uniform hexagonal array (UHA) sidelobe level (SLL) reduction is a crucial consideration for avoiding co-channel interference and improving Carrier-to-interference Ratio (CIR) performance in HAP wireless networks using the TVWS spectrum. SLL UHA has been researched by applying evolutionary algorithms such as genetic algorithm (GA) Particle Swarm Optimization (PSO). However, have drawbacks early convergence inability to reach globally. beam pointing approaches antennas Modified PSO (MPSO), reducing on finding optimal current weights presented this article. antenna with 19 cells fitted 169 elements HAPs cellular structure considered simulate proposed approach. Then, MPSO approach employed compared standard Weighting (UW) scheme. As per simulation findings, drastically decreased sidelobes, of up -6.84dB -13.3dB when UW respectively. In other words, outperforms algorithms. Moreover, CIR demonstrated terms average outage probability provides better result.