Nghiên cứu về phương pháp truyền thông của mạng di động trong điều kiện suy giảm bóng mát dựa trên thuật toán căn chỉnh nhiễu

Springer Science and Business Media LLC - Tập 72 - Trang 2891-2909 - 2016
Wei Zhou1, Su Yu1
1Engineering Training Center, Shanghai University of Engineering Science, Shanghai, China

Tóm tắt

Khi tín hiệu truyền thông không dây gặp trở ngại trong quá trình giao tiếp do hiện tượng suy giảm bóng mát, các phương pháp truyền thông truyền thống cố gắng lắp đặt thêm nhiều ô vi mô. Tuy nhiên, việc bổ sung ô vi mô sẽ làm tăng nhiễu kênh đồng tần số và hiệu quả không đạt yêu cầu. Bài báo này trình bày một phương pháp truyền thông cho mạng di động trong điều kiện suy giảm bóng mát dựa trên thuật toán căn chỉnh nhiễu. Bằng cách xử lý chống nhiễu tín hiệu truyền thông mạng không dây trong các vùng bị bóng mát, và điều chỉnh xác suất truyền thông hiệu quả cũng như kênh lưu lượng dữ liệu trong các khu vực này, mục tiêu là tối ưu hóa giao tiếp trong các khu vực bóng mát. Kết quả thực nghiệm cho thấy thuật toán căn chỉnh nhiễu đã được cải tiến có thể tránh được các khuyết điểm của nhiễu đồng tần số do bản chất giới hạn tài nguyên phổ sóng vô tuyến giữa các ô và giảm tỷ lệ lỗi trong giao tiếp.

Từ khóa

#suy giảm bóng mát #mạng di động #căn chỉnh nhiễu #truyền thông không dây #nhiễu đồng tần số

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