Nâng cao dung lượng bảo mật hệ thống vô tuyến bằng việc sử dụng mặt phản xạ thông minh gắn trên máy bay không người lái=Improve radio system security capacity by using smart reflectors mounted on drone

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Bá Cao Nguyễn, Nhật Duy Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Công nghệ Đồng Nai, 2024

Mô tả vật lý: tr.28-40

Bộ sưu tập: Metadata

ID: 244046

Thêm vào giỏ

In practice, legitimate receiver hardware is often imperfect, while eavesdropper hardware tends to be more reliable. As a result, the secrecy capacity of wireless systems is significantly reduced. To enhance the secrecy capacity of wireless systems, this article proposes the use of an intelligent reflecting surface (IRS) mounted on an unmanned aerial vehicle (UAV). We have successfully derived the secrecy capacity (SC) expression for the proposed system over the Nakagami-m channel using the channel model designed for the fifth and beyond generations (5G and B5G) of wireless systems. The theoretical calculation expression has been validated through Monte-Carlo simulations. Numerical results demonstrated a substantial improvement in the secrecy capacity of the proposed system when utilizing UAV/IRS, compared to the traditional system without UAV/IRS. Furthermore, we conducted a detailed analysis of the effects of imperfect transceiver hardware and other parameters on the secrecy capacityTrong thực tế phần cứng máy thu hợp pháp thường không hoàn hảo trong khi phần cứng thiết bị nghe lén thường là hoàn hảo. Do vậy, dung lượng bảo mật hệ thống vô tuyến bị suy giảm đáng kể. Để nâng cao dung lượng bảo mật hệ thống vô tuyến, bài báo này đề xuất sử dụng mặt phản xạ thông minh (IRS) gắn trên máy bay không người lái (UAV). Chúng tôi tìm ra biểu thức dung lượng bảo mật hệ thống đề xuất qua kênh Nakagami-m , sử dụng mô hình kênh xây dựng cho hệ thống vô tuyến thế hệ thứ 5 và tiếp theo. Biểu thức tính toán lý thuyết được kiểm chứng bằng mô phỏng Monte-Carlo. Kết quả tính toán số cho thấy hệ thống đề xuất (sử dụng UAV/IRS) nâng cao đáng kể dung lượng bảo mật so với hệ thống truyền thống (không sử dụng UAV/IRS). Đồng thời, ảnh hưởng của phần cứng không hoàn hảo và các tham số khác lên dung lượng bảo mật hệ thống được phân tích chi tiết.

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