## 8 Conclusions and Discussion
Practical adaptations of the switch in indoor industrial environments can support the current expectations of energy efficiency, and allow us to address the requirement of zero-energy devices. This system can also be adapted in outdoor settings, where performance evaluation may be different due to differences in the fading channel and the transmission pathway. Additionally, future work will explore the adaptability of the switching algorithm under different fading environments and investigate its application in indoor 6G IoT environments, including miniature THz environments and network slicing-based transmission schemes. Future improvements of the switch performance can be included through an addition of a feedback loop to monitor the real-time SNR of the system and to adjust the power splitting ratio and/or reflection coefficient accordingly. However, this would require a more detailed consideration on the algorithm's complexity, since this will directly affect the overall run-time and power requirement for switch operation. This study presently considers the transmission requirements, switch operation, and other associated features. However, another predominant aspect of the transmission network that needs to be carefully considered is the security of the wireless network. Though the scope of this study is limited to the introduction of the switch, future studies need to consider aspects of data encryption within the switch. The switch can also be considered within studies exploring advanced security features such as edge devices. Further, when considering the proposed algorithm, the objective is to determine the selection between the transmission modes, ABCS and SWIPT, in order to achieve higher energy efficiency and transmission accuracy while harvesting energy where possible. Thus, any security features to be embedded within the switch are implemented once the selection between ABCS and SWIPT has been made. The security features for the transmissions for ABCS and SWIPT modes may differ as required, thereby providing a more advanced security system. Future research should also consider the implementation of an energy-efficient hardware unit for the switch, so that the switch requires less energy for operation. Aspects such as low-power sensors and electronics should be considered, along with the operational efficiency of the electronics associated with the switch. This would reduce the energy requirements for operation, thereby providing a better opportunity to focus on better transmission. Based on the simulation results obtained, it can be seen that the switch performance is ideal in terms of the requirements of the indoor environment in which the switch is located, the requirements of the zero-energy devices concept, and the adaptation of SWIPT and ABCS schemes in a practical environment. Conceptualization, V.P.S., T.D.P.P. and D.N.K.J. ; methodology, V.P.S., T.D.P.P. and D.N.K.J. ; validation, V.P.S. and T.D.P.P. ; formal analysis, V.P.S. and T.D.P.P. ; investigation, V.P.S. and T.D.P.P. ; resources, V.P.S., T.D.P.P. and D.N.K.J. ; data curation, V.P.S. and T.D.P.P. ; writing--review and editing, V.P.S., T.D.P.P. and D.N.K.J. ; supervision, T.D.P.P. and D.N.K.J. ; project administration, T.D.P.P. and D.N.K.J. All authors have read and agreed to the published version of the manuscript. This work was supported, in part, by the national funds through FCT--Fundacao para a Ciencia e a Tecnologia--as part of the projects AIEE-UAV (No. 2022.03897.PTDC), URLLC-UAV (2023.08191.CEECIND), and COPELABS (No. UIDB/04111/2020), by the COFAC--Cooperativa de Formacao e Animacao Cultural, C.R.L. (University of Lusofona University), via the project PortuLight (COFAC/ILIND/COFELABS/2/2023), and by the Scheme for Promotion of Academic & Research Collaboration (SPARC), Government of India, via grant no. SPARC/2024-2025/NCTG/P3524.