# Oceania's 5G Multi-Tier Fixed Wireless Access Link's Long-Term Resilience and Feasibility Analysis
## 3 5G Base Coverage Network Layout
### Simulations of SINR and 5G Network Coverage
Path loss components of the 5G system and link budget analysis using the ray tracing method to examine communication routes and coverage areas in urban areas are shown in Figure 9.  
The deployment region for the simulation of real-world 5G network coverage in this part, along with RF signal tracing, is Fiji National University's latitude \(-18.126152\) and longitude \(178.438928\) at the CEST Samabula Campus in Fiji. Figure 10 uses a Google map to illustrate the simulated network coverage and the SINR. The suggestions made by IMT2020 for the planning and simulation of the 5G network's coverage are followed in this study [55]. Each simulation parameter and simulation outcome are shown in Table 4.  
Figure 9: Path loss components of the 5G system and link budgets analysis using ray tracing method to examine communication routes and coverage areas in urban area listed as (**a**) Fiji National University Samabula Campus small-cell 5G transmitter; (**b**) Fiji National University Samabula Campus coverage map for line-of-sight propagation; (**c**) propagation paths including two-reflection and one-diffraction; (**d**) point the antenna east and view the radiation pattern. Figure 10 shows the SINR for a group of 19 cell sites with 5G network coverage with three sectors each and one antenna element at Fiji National University's Samabula Campus. The SINR is a quantity used in information theory and telecommunication engineering to provide theoretical upper constraints on channel capacity (or the rate of information transfer) in wireless communication systems like networks. Like the SNR, which is frequently employed in wired communications systems, the SINR is defined as \begin{table}
\begin{tabular}{c c} \hline \hline
**Selected Parameters for 5G Test** & **Selected Values for 5G Test** \\ \hline
5G network operating frequency in GHz & 30.00 \\
5G network bandwidth in MHz & 80.00 \\
5G base station antenna height in meter & 25.00 \\
5G base station transmitter power in dBm & 40.00 \\
5G base station antenna gain in dBi & 10.00 \\
5G base station and transmitter antenna noise figure in dB & 7.00 \\
5G receiver station antenna height in meter & 1.50 \\
5G receiver antenna noise figure in dB & 5.00 \\
5G systems receiver gain in dBi & 8.00 \\
5G systems no. of cell sites selected & 19.00 \\
5G test systems inter-site distance in meter & 200.00 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: 5G network simulation settings for coverage and SINR at Samabula Campus of Fiji National University, Fiji. Figure 10: 5G network coverage and SINR for a collection of 19 cell sites with three sectors each and a single antenna element at Samabula Campus of Fiji National University, Fiji are listed as (**a**) transmitter site at Fiji National University, Samabula Campus; (**b**) SINR map for single antenna element; (**c**) SINR map for 8-by-8 antenna array; (**d**) SINR map using close-in propagation model. the power of an interest signal divided by the sum of all interference signals plus some background noise. The signal-to-interference ratio (SIR) replaces the SINR if the power of the noise term is zero. The signal-to-noise ratio (SNR), which is employed less frequently when creating mathematical models of wireless networks like cellular networks, is reduced to zero interference, on the other hand. The best RF coverage is achieved, as shown in Figure 11, by adding a 16-by-16 array antenna for each transmitter. The deployment locations at Samabula Campus of Fiji National University currently fulfill the minimum criterion of 19 dB SINR or above for the 5G network. Since the array gain (or directivity) climbs as the array's element count rises, the peak SINR rises as expected. The precise SINR values that can be achieved in a 5G network can change based on several variables, including the signal's strength, its distance from the base station, the interference in the area, and the network's setup. However, for optimum performance, an SINR value above a particular cutoff is preferred.