The simulation code is licensed under the GPLv2 license and is delivered as it is. The authors encourage you to reuse the code in your research, but we cannot give any support. The readme file contains the instructions on how to run the code. As soon as you edit the code, you are on your own. My GitHub page is the only way that we are sharing simulation code, so there is no need to send us emails and ask for code related to other papers. The code is either openly available for everyone or it is not available at all.
This code package is licensed under the GPLv2 license. If you in any way use this code for research that results in publications, please cite the original article listed above.
@article{wang2023risha,
title={On hardware aging for practical RIS-assisted communication systems},
author={Wang, Ke and Lam, Chan-Tong and Ng, Benjamin K},
journal={Electronics Letters},
volume={59},
number={2},
pages={e12714},
year={2023},
publisher={Wiley Online Library}
}
This is a code package is related to the follow scientific article:
K. Wang, C. -T. Lam and B. K. Ng, "On Hardware Aging for Practical RIS-Assisted Communication Systems," in Electronics Letters, January 2023, Vol. 59 No. 2.
In this letter, reconfigurable intelligent surface (RIS) is studied from an electronic device reliability perspective. Runtimes and lifetimes of the RIS are introduced for the first time as impairment factors that degrade the system performance. In particular, Weibull distributions are used to model the runtime-related hardware aging (HA) effect on the RIS at first. Then, a practical RIS-assisted system model with phase-dependent amplitude variations, residual hardware impairments, and HA effects, is obtained. Besides, closed-form expressions of the received signal power and spectral efficiency for the proposed system are also derived. Analytical and numerical evaluations reveal that the HA effect on the RIS is the major impairment factor when the runtime is beyond the lifetime of the RIS.
Please run "Figure_2.m" to obtain the Figure 2 of the paper. Note that this is a simulated result. By modifying the parameters, other figures can be obtained easily.