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Efficient Dynamic Bandwidth Allocation for FSAN-compliant GPON
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- Authors
- Man-Soo Han, Hark Yoo, Bin-Young Yoon, Bongtae Kim, Jai-Sang Koh
- Issue Date
- 2008-08
- Citation
- Journal of Optical Networking, v.7, no.8, pp.783-795
- ISSN
- 1536-5379
- Publisher
- Optical Society of America (OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- 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)