Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Một tổng quan và một phương pháp mới nhằm giảm thiểu tải trọng định tuyến trong mạng ad hoc di động (MANETs)
Tóm tắt
Mạng ad hoc di động được đặc trưng bởi sự thay đổi thường xuyên trong hình dạng mạng và nhu cầu có một giao thức định tuyến động hiệu quả. Trong nghiên cứu này, chúng tôi đã so sánh hiệu suất của năm giao thức định tuyến ad hoc với ba mô hình di động khác nhau thông qua các mô phỏng NS-2, các giao thức được mô phỏng bao gồm: AODV, OLSR, DSR, DSDV và ZRP. Hơn nữa, chúng tôi đã xem xét tác động của tải lượng giao thông, mức độ di động và mật độ nút lên hành vi của các giao thức này. Sau đó, chúng tôi giới thiệu một thuật toán cho xác suất chuyển tiếp RREQ nhằm cải thiện hiệu suất giao thức định tuyến AODV (PAODV). Kết quả mô phỏng của năm giao thức cho thấy không có giao thức nào vượt trội hơn tất cả các giao thức khác về tất cả các tiêu chí đánh giá. Do đó, mỗi giao thức có hành vi hiệu suất khác nhau với các chỉ số được xem xét, bao gồm tải trọng định tuyến, tỷ lệ giao hàng gói tin, độ trễ trung bình từ đầu đến cuối và băng thông trung bình. Kết quả mô phỏng PAODV cho thấy thuật toán đề xuất của chúng tôi giúp giảm thiểu sự va chạm và cạnh tranh trên mạng, từ đó tăng tỷ lệ giao hàng gói tin và băng thông. Cuối cùng, nó giảm độ trễ trung bình từ đầu đến cuối, tải trọng định tuyến và do đó nâng cao hiệu suất của các giao thức định tuyến theo yêu cầu.
Từ khóa
#Mạng ad hoc di động #giao thức định tuyến #AODV #tải trọng định tuyến #băng thôngTài liệu tham khảo
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