# Impact of Latency on QoE, Performance, and Collaboration in Interactive Multi-User Virtual Reality
## 3 Materials and Methods
### System Architecture
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Nr.** & **Component** & **Specifications** \\ \hline
1 & Access Point & DIR-809 D-Link AC750 Dual Band Router (D-Link Benelux, 5480 AA Schjndel, The Netherlands) 1 \\ \hline
2 & Client & \(\bullet\) HP ZBook Studio 16 inch C9 Mobile Workstation PC (HP Belgium BV, 1831 Diegem, Belgium) 2 \\  & & \(\bullet\) 32 GB RAM \\  & & 12 th Gen Intel(R) Core(TM) i7-12800H62.4 GHz CPU \\  & & \(\bullet\) NVIDIA GeForce RTX 3070 [EMAIL_ADDRESS] GHz Laptop GPU (8 GB GDDR6) \\  & & \(\bullet\) Unity 2021.3.17f1 \\ \hline
3 & HMD & \(\bullet\) Meta Quest 2 VR Headset (Meta Platforms Technologies Ireland Limited, Dublin 4, D04 X2K5, Ireland) 3 \\  & & \(\bullet\) Android \\  & & \(\bullet\) GDoF-tracking \\  & & \(\bullet\) 1832 \(\times\) 1920 resolution \\  & & \(\bullet\) 120 GHz refresh rate \\  & & \(\bullet\) Qualcomm Snapdragon XR2 processor \\  & & \(\bullet\) 4 Kyro 585 [EMAIL_ADDRESS] GHz, 3 Kyro 585 [EMAIL_ADDRESS] GHz \\  & & \(\bullet\) and 1 Kyro 585 [EMAIL_ADDRESS] GHz CPU cores \\  & & \(\bullet\) Adreno [EMAIL_ADDRESS] GHz GPU (1.2 TFLOPS) \\  & & \(\bullet\) IMU, SLAM, LiDAR \\ \hline
4 & Server & \(\bullet\) Corsair Graphite 380T Portable Mini ITX (Corsaire, 1311 XB Almere, The Netherlands) 4 \\  & & \(\bullet\) 16 GB RAM \\  & & \(\bullet\) 4 th Gen Intel(R) Core(TM) i7-4790 @3.6 GHz CPU \\  & & \(\bullet\) EVGA GeForce GTX 980 Ti GPU (6 GB GDDR5) \\  & & \(\bullet\) Unity 2021.3.17f1 \\ \hline a & UTP-cable & LAN over Ethernet \\ \hline b & Oculus Link Cable & \(\bullet\) USB 3.0 \\  & & \(\bullet\) 5 Gbps \\ \hline c & Unity networking software & NGO-package 5 \\ \hline d & Network control software & Clumsy 6 \\ \hline e & Network analysis software & Wireshark 7 \\ \hline \hline \end{tabular}  
* ([[https://www.dlink.com/be/nl/products/dir-809-wireless-ac750-dual-band-router](https://www.dlink.com/be/nl/products/dir-809-wireless-ac750-dual-band-router)]([https://www.dlink.com/be/nl/products/dir-809-wireless-ac750-dual-band-router](https://www.dlink.com/be/nl/products/dir-809-wireless-ac750-dual-band-router)), accessed on 5 March 2024); 2 ([[https://www.hp.com/be-nl/products/workstations/product-details/2101300108](https://www.hp.com/be-nl/products/workstations/product-details/2101300108)]([https://www.hp.com/be-nl/products/workstations/product-details/2101300108](https://www.hp.com/be-nl/products/workstations/product-details/2101300108)), accessed on 5 March 2024); 3 ([[https://www.meta.com/be/en/en/quest/products/quest-2/](https://www.meta.com/be/en/en/quest/products/quest-2/)]([https://www.meta.com/be/en/en/quest/products/quest-2/](https://www.meta.com/be/en/en/quest/products/quest-2/)), accessed on 5 March 2024); 4 ([[https://www.oxnican.com/us/en/p/pc-cases/cc-0911065-www/graphite-series-380-yellow-portable-mini-i-tc-exec-5011065-www](https://www.oxnican.com/us/en/p/pc-cases/cc-0911065-www/graphite-series-380-yellow-portable-mini-i-tc-exec-5011065-www)]([https://www.oxnican.com/us/en/p/pc-cases/cc-0911065-www/graphite-series-380-yellow-portable-mini-i-tc-exec-5011065-www](https://www.oxnican.com/us/en/p/pc-cases/cc-0911065-www/graphite-series-380-yellow-portable-mini-i-tc-exec-5011065-www)), accessed on 5 March 2024); 5 ([[https://docs-multiplayer.untity3d.com/netcode/cur](https://docs-multiplayer.untity3d.com/netcode/cur)]([https://docs-multiplayer.untity3d.com/netcode/cur](https://docs-multiplayer.untity3d.com/netcode/cur)) rent/about/, accessed on 5 March 2024); 6 ([[https://jagt.github.io/clumsy/](https://jagt.github.io/clumsy/)]([https://jagt.github.io/clumsy/](https://jagt.github.io/clumsy/)), accessed on 5 March 2024); 7 ([[https://www.wireshark.org/](https://www.wireshark.org/)]([https://www.wireshark.org/](https://www.wireshark.org/)), accessed on 5 March 2024).  
Footnote 7: ([[https://www.wireshark.org/](https://www.wireshark.org/)]([https://www.wireshark.org/](https://www.wireshark.org/)), accessed on 5 March 2024).  
\end{table}