## 5 Conclusions and Future Work  
Mulsemedia setups can be considered as a unique combination of hardware, software and contents made available in given geographic and social contexts with the purpose to  
Figure 12: Three-dimensional environment performance assessment: the left plot shows the time required for 3D endpoints (lamp, fan and display) state switching, while in the one placed at the right, the performance impact (in FPS) of having a single display running a video vs. 10 more of them in the same conditions is presented.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Video** & **Size (px)** & **Data Transmission Rate** & **Total Transmission Speed (bits)** & **FPS** \\ \hline Marvel.mp4 & 1280 \(\times\) 720 & 1208 kbps & 1334 kbps & 30 \\ DC.mp4 & 1280 \(\times\) 720 & 1942 kbps & 2069 kbps & 24 \\ \hline \hline \end{tabular}
\end{table}
Table 9: Specifications of the videos used in the proposed IoT simulation tool.  
deliver sensory-aware experiences. Each can also be regarded as a work in progress as they should evolve and interact differently through time, to retain visitors' engagement.  
However, to design, maintain and modify mulsemedia setups requires a team effort and is usually done by specialized companies. Often, scheduled and emergency maintenance operations must be made in loco. These costs can be significant and represent a deterrent for mulsemedia setups owners to keep their experiences in perfect working order, but mainly to change them and update contents.  
This paper proposes a prototyping software to enable IoT mulsemedia environments simulation, based on virtual environments that enable the design, configuration, maintenance and update of experiences regardless of software and hardware used. Two virtual environments were created and tested, demonstrating success. The prototyping software is currently being used by a multimedia company that manages several mulsemedia setups both nationally and internationally. It is noteworthy that rather than competing with existing solutions developed with similar purposes (e.g., [28; 32]), the proposed system intends to provide an alternative agnostic approach to simulate IoT environments before their deployment, privileging quick planning strategies for arranging mulsemedia setups, being more flexible to programmers, and capable of being extended with digital twin features for the management of actual infrastructures, supported by more intuitive interfaces.  
Future work will, thus, address the extension of this solution to real environments, exploring concepts of digital twinning for remote control and supervision of IoT setups with enhanced levels of interaction engagement, as well as cost-effective maintenance, pursuing a multi-context platform for a wide variety of applications, ranging from business-to-business (to-customer) commercial transaction models to Industry 5.0-related challenges.  
Conceptualization, T.A. and E.P.; data curation, T.A. and T.P.; formal analysis, L.G.M., E.P. and J.J.S.; funding acquisition, E.P.; investigation, T.A., T.P. and L.P.; methodology, T.A. T.P. and E.P.; project administration, E.P.; resources, T.A. and E.P.; software, T.A. and T.P.; supervision, E.P. and L.G.M.; validation, T.P., E.P. and L.G.M.; visualization, T.A., T.P. and L.P.; writing--original draft, T.A., T.P. and E.P.; writing--review and editing, E.P., L.G.M., L.P. and J.J.S. All authors have read and agreed to the published version of the manuscript.  
This work was financed by project \"CHIC--Cooperative Holistic View on Internet and Content\" (N\({}^{\circ}\) 24498), financed the European Regional Development Fund (ERDF) through COMPETE2020 --the Operational Programme for Competitiveness and Internationalisation (OPCI).  
Not applicable.  
The authors declare no conflict of interest.