Optima,l scheduling for asynchronous transfer mode switches using neural networks.
Đặng Công Trạm, Chu Văn Hỷ · Journal of Computer Science and Cybernetics · 2013
We consider an ATM (asynchronous transfer mode) nonblocking switch with input bypass queues.A queue length based priority scheme is used.In this paper we present a method of designing an optimal cell scheduling controller using Hopfield networks to maximize switch throughtput in ATM environments.Theo chien hro'c dieu khi~n luong ph an 16p [2] [rrnrc tg bao, rmrc cuoc goi, rmrc mang], dieu khign rmrc tg bao trtrc tigp lam thay d5i so hro ng te bao diro'c chuydn m ach d c ac nut, nHm cue dai hoa thong hrong va C1).'C ti~u hoa thoi gian tr~.Neu xet theo yeu cau bi~u di~n toan h9C ch~t che nhir vay, thl cac phircng phap dieu khi~n luong va l~p lich tg bao thucrig dung, nhir: cai thung ro, cU.-as5 v61.dau vao tuan tV-... deu khOng phai la.toi U'U [2].M9t cau hoi durrc d~t ra la: Co th~chg t ao bi? dieu khi~n l~p lich toi iru cho cac chuydn mach ATM khOng?ngu co thl nguyen If lam vi~c cii a no ra sao? va vrri phtrong ti~n ky thu~t hieri nay, li~u thigt kg mci co kha thi khOng?Sau khi th anh l~p me hlnh toan h9C, ta nh an thay day la m9t bai toan toi U'U hoa t5 ho'p, rat it khi ton t.ai thu~t giii co hieu qui, Hen nira, ngu thirc hien bhg phan mem ho~c cirng h6a nho' cac vi m ach so thong thtrong, thl v6'i khdi hrong tinh toan do s9 ta khOng th~tinh kip toc di? rat nhanh cti a rn ang ATM.May thay, cac m,!-ng no ron nhan t ao v6'i kh a n ang tinh toan song song va nhirng tinh nang "thong minh" la nhirng corig c~m6'i giup ta thuc hien diro'c rihiem v':! do.Cac m,!-ng Hopfield, RBF ... dii th anh cong cho mot so irng dung IO,!-inay trong h~thong vi~n thOng.Trong bai nay, cluing toi gioi thieu mdt phucrng phap thigt kg bi? di'eu khign l~p lich toi iru slidung m~ng Hopfield [5] vo'i mdt so b5 sung va ph at tri~n m61..