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학술지 Efficient Dynamic Bandwidth Allocation for FSAN-compliant GPON
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저자
한만수, 유학, 윤빈영, 김봉태, 고재상
발행일
200808
출처
Journal of Optical Networking, v.7 no.8, pp.783-795
ISSN
1536-5379
출판사
Optical Society of America (OSA)
DOI
https://dx.doi.org/10.1364/JON.7.000783
협약과제
08ZT1100, 광가입자망(FTTH)서비스 개발 실험사업, 고재상
초록
We suggest an immediate allocation with colorless grant (IACG) method for dynamic bandwidth allocation of a gigabit passive optical network (GPON) system. The suggested method is based on the GigaPON Access Network (GIANT) media access control (MAC) method. The IACG method can assign the transmission bandwidth regardless of the value of a scheduling counter, whereas the GIANT MAC method can assign the transmission bandwidth only when the scheduling counter has a value of 1. Also, unlike the GIANT MAC method, the IACG method utilizes the unallocated remainder of the transmission bandwidth. At the end of scheduling, the IACG MAC method assigns the unallocated remainder to each optical network unit (ONU) with an equal share. Using computer simulations with the self-similar traffic model, we show that the IACG method dramatically outperforms the GIANT MAC method in mean delay and frame-loss rate. © 2008 Optical Society of America.
KSP 제안 키워드
Computer simulation(MC and MD), Gigabit passive optical network(GPON), MAC method, Optical network unit(ONU), Self-similar traffic, Traffic model, access network, dynamic bandwidth allocation, loss rate, mean delay, media access control(MAC)