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- W4312115437 abstract "5G network operators consider the dense deployment of small base-stations (SBSs) to increase network coverage and capacity. Hence, operators face the challenge of X-hauling, i.e., backhauling or fronthauling, their traffic to the core network. Also, SBSs densification will increase the possibility of failure of these X-haul links. To cope with this problem, an X-haul outage compensation scheme with the assistance of Reconfigurable Intelligent Surfaces (RIS) is proposed to mitigate or at least alleviate the effect of X-haul failure. The RIS is a newly adopted technology that is able to improve the performance of wireless networks. In this paper, we present and evaluate an X-haul outage compensation scheme based on placing a number of RIS panels in pre-planned locations to mitigate the effect of X-haul failure. This evaluation is done using frequencies below and beyond 6 GHz. Based on our analytical results, the proposed RIS scheme shows that placing a sufficient number of RIS elements in proximity to the failed SBS under certain conditions can help acquire the same X-haul rate before the occurrence of the failure. Also, we show that for high X-haul spectral density, the RIS-assisted transmission with a certain number of elements can be more energy-efficient than line-of-sight and non-line-of-sight transmissions. Finally, the system's energy efficiency is addressed with and without RIS, and the optimal number of RIS reflecting elements is derived." @default.
- W4312115437 created "2023-01-04" @default.
- W4312115437 creator A5024301241 @default.
- W4312115437 creator A5069714415 @default.
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- W4312115437 date "2022-07-03" @default.
- W4312115437 modified "2023-09-26" @default.
- W4312115437 title "X-haul Outage Compensation in 5G/6G Using Reconfigurable Intelligent Surfaces" @default.
- W4312115437 doi "https://doi.org/10.48550/arxiv.2207.03582" @default.
- W4312115437 hasPublicationYear "2022" @default.
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