University of Hertfordshire

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Original languageEnglish
Pages (from-to)227-236
Number of pages10
JournalPhotonic Network Communications
Volume18
Issue2
Early online date24 Feb 2009
DOIs
Publication statusPublished - 2009

Abstract

The Gigabit-capable passive optical network (GPON) has become an attractive and promising solution for the broadband access network. It is apparent that an efficient medium access control (MAC) protocol is crucial not only to catalyze the utilization of the upstream resources but also to support the GPON encapsulation method (GEM) for multiple services over GPON. A new approach for bandwidth reporting is developed to achieve dynamic awareness of both the changes of ONU queue status and the consequences of previous allocations. In addition, a novel balance transferring mechanism that enables a register and transfer process for successive allocation across multiple frames is presented. By incorporating the new schemes of bandwidth reporting process and the balance transferring mechanism into a frame-based scheduling procedure, an efficient dynamic bandwidth assignment MAC protocol is developed to support differentiated services over GPON. The performance of the new protocol is simulated and evaluated under a variety of traffic distributions. Simulated characteristics demonstrate a significantly improved network performance.

Notes

“The original publication is available at www.springerlink.com”. Copyright Springer. [Full text of this article is not available in the UHRA]

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