Reconfigurable intelligent surface

In this study, we suggested an FSO system with RIS assistance to mitigate the effects of signal blockage in the communication system, atmospheric turbulence, and UAV’s misalignment-induced fading. In a free-space environment with obstacles, the probability density function and cumulative distribution functions of an FSO system made up of RIS are derived.

8p vithomson 02-07-2024 0 0   Download

Bài viết "Đánh giá hiệu quả năng lượng hệ thống vô tuyến sử dụng nhiều mặt phản xạ thông minh với phần cứng không hoàn hảo" đề xuất mô hình và đánh giá hiệu quả năng lượng hệ thống vô tuyến thế hệ mới, trong đó nhiều mặt phản xạ thông minh (RISs: Reconfigurable Intelligent Surfaces) được sử dụng cho truyền tin từ nguồn đến đích. Mặt khác, phần cứng không hoàn hảo (HIs: Hardware Impairments) được xem xét trong hệ thống.

6p phocuuvan0201 02-02-2024 2 1   Download

In this work, we aim to design and evaluate an autoencoder-based communication model with RIS support, which can adapt to changes in the environment and the receiver’s position. Specifically, we use neural networks to present the encoder and decoder of the system and the parameters of these networks are trained to minimize the reconstruction error at the receiver.

10p visystrom 22-11-2023 6 4   Download

"Intelligent reflective surface supports mobile network beyond 5G and 6G" provide network designers, researchers, and authors, the author will conduct a survey of works to provide information on the theory of structure and operation of this outstanding technology.

8p nhanchienthien 25-07-2023 8 4   Download

The paper provides a pathloss and channel model in a smart surface-assisted communication system built based on physical-optical techniques and Snell’s light reflection theorem. With mathematical expressions, it will provide researchers with a way to calculate, simulate, analyze, evaluate and calibrate communication channels to achieve optimal efficiency before deploying experimental fabrication. or for comparison with other information transfer enhancement technologies such as AF relay and amplifier, MIMO beamforming, and BackCom backscatter communication.

8p nhanchienthien 25-07-2023 4 4   Download