TY - JOUR
T1 - Performance Analysis of RIS-Assisted Wireless Communications With Energy Harvesting
AU - Zhang, Bingxin
AU - Yang, Kun
AU - Wang, Kezhi
AU - Zhang, Guopeng
N1 - Funding information: This work was supported in part by the National Natural Science Foundation of China under Grants 62132004 and 61971421, in part by Sichuan Major R&D Project under Grant 22QYCX0168 and in part by EU H2020 Project COSAFE under Grant GA-824019.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - In this paper, we investigate a reconfigurable intelligent surface (RIS)-assisted wireless communication system with energy harvesting. In the single information user (IU) scenario, we consider the power control of base station (BS) and the random deployment of energy users (EUs). To this end, we first characterize the statistical features of the channel gains over BS-RIS-IU and BS-RIS-EU cascaded links. Then, we derive a closed-form expression of the information outage probability (IOP) of the IU and show an upper bound of the energy outage probability (EOP) of EUs by invoking the Jensen's inequality. Furthermore, we consider two more general extensions, namely, the existence of imperfect phase alignment and multiple IUs. Finally, the correctness of the analysis results is verified by Monte-Carlo simulation.
AB - In this paper, we investigate a reconfigurable intelligent surface (RIS)-assisted wireless communication system with energy harvesting. In the single information user (IU) scenario, we consider the power control of base station (BS) and the random deployment of energy users (EUs). To this end, we first characterize the statistical features of the channel gains over BS-RIS-IU and BS-RIS-EU cascaded links. Then, we derive a closed-form expression of the information outage probability (IOP) of the IU and show an upper bound of the energy outage probability (EOP) of EUs by invoking the Jensen's inequality. Furthermore, we consider two more general extensions, namely, the existence of imperfect phase alignment and multiple IUs. Finally, the correctness of the analysis results is verified by Monte-Carlo simulation.
KW - Closed-form solutions
KW - Energy harvesting
KW - Power system reliability
KW - Probability density function
KW - Reconfigurable intelligent surface
KW - Signal to noise ratio
KW - Upper bound
KW - Wireless communication
KW - energy harvesting
KW - outage probability
KW - stochastic geometry
UR - http://www.scopus.com/inward/record.url?scp=85137888984&partnerID=8YFLogxK
U2 - 10.1109/tvt.2022.3205448
DO - 10.1109/tvt.2022.3205448
M3 - Article
VL - 72
SP - 1325
EP - 1330
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
SN - 0018-9545
IS - 1
ER -