tailieunhanh - Một thuật toán gen cho thiết kế topology mạng có khả năng hồi phục
In network designing phase, one of QoS problems is designing survivable networks to assure that services are not disrupted when a failure happens. On an ATM, MPLS, GMPLS based-on network techonologies, there are many approaches for designing survivable networks. This paper introduces a genetic algorithm for topological design of survivable networks by a repetitively-restorable method. | ’ Tap ch´ Tin hoc v` Diˆu khiˆ n hoc, , (2007), 59—70 ı e e . . a ` . ´ ´ ˆ ˆ ´ ˆ ˆ MOT THUAT TOAN GEN CHO THIET KE TOPOLOGY . . ` ’ ˘ ´ ˆ MANG CO KHA NANG HOI PHUC . . ˜ ´ ˆ ´ ˆ ˆ NGUYEN QUY MINH HI` N, PHAM QUOC HUY E . Viˆn Khoa hoc K˜ thuˆt diˆn e y a e . . . . Abstract. Today, telecommunication technologies and services are deploying rapidly in NGN (Next Generation Network) networks. Quality of Service (QoS) problems in NGN networks are addressed in network designing, deploying, maintaining phases. In network designing phase, one of QoS problems is designing survivable networks to assure that services are not disrupted when a failure happens. On an ATM, MPLS, GMPLS based-on network techonologies, there are many approaches for designing survivable networks. This paper introduces a genetic algorithm for topological design of survivable networks by a repetitively-restorable method. ’ ´ ` T´m t˘t. Hiˆn nay, v´.i viˆc triˆ n khai cˆng nghˆ mang NGN, c´c dich vu thˆng tin truyˆn thˆng o a e o e e o e . a . e o . . . . o . ph´t triˆ n rˆ t nhanh ch´ng v´.i nhiˆu loai h` dich vu. Mˆt trong nh˜.ng vˆ n dˆ d˘t ra ’ ´ ` ´ e . dang du . a e a o o e ınh . o u a ` a . . . ’ ´ ´ ´ ’ ’ a ’ ’ a d´ l` cˆn phai thiˆt kˆ, triˆ n khai mang c´ kha n˘ng dam bao chˆ t dich vu cho c´c loai dich o a ` a e e e o a . . . . . . ’ ´ ´ ´ o u a o o vu triˆ n khai trˆn d´. Mˆt trong nh˜.ng yˆu cˆu vˆ chˆ t dich vu d˘t ra dˆi v´.i viˆc thiˆt kˆ e e o e ` ` a a e ´ e e e . . . . . . . ’ ` ´ ´ ’ o ’ a ’ a o a . o e ’ a . o a mang, d´ l` mang phai c´ kha n˘ng hˆ i phuc dˆ dam bao cung cˆ p dich vu v´.i chˆ t nhu. d˜ . . . . .i kh´ch h`ng ngay trong nh˜.ng tru.`.ng mang c´ su. cˆ. Trˆn co. so. c´c cˆng nghˆ ´ ´ ’ a o cam kˆt v´ e o a a u o e o . o e . . . ’ ` ` ´ . ’ ’ a ’ o e a u e a e ’ o mang nhu. ATM, MPLS, GMPLS, c´ nhiˆu c´ch th´.c tiˆp cˆn dˆ dam bao kha n˘ng hˆ i phuc cua . . ` ´ ´ ’ a mang. B`i b´o n`y gi´.i thiˆu mˆt thuˆt to´n thiˆt kˆ .
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