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Traditionally, allocating of Ethernet Passive Optical Network EPON bandwidth schemes relied ona centralized architecture where their Optical Line Terminal OLT is the sole intelligent devicewith the capability for the arbitration of bandwidth based on time-division access for the upstreamshared channel. However, any breakdown in the OLT bandwidth allocation will affect theallotment for Optical Network Units ONUs. Few researches had dealt with a decentralized approachfor the EPON and most of the solutions proposed involved additional cost by adding newcomplex devices to the original architecture. This paper proposes an intelligent decentralizedmechanism in EPON that enhances the network performance using intelligent agents specificationbased on the IEEE 802.3 ah standards in the foundation for intelligent physical agent which iscompatible with an Internet Protocol IP-based network. Specifically, this paper proposes a noveldistributed scheme that supports differentiated services and ensures QoS for both Inter-and Intra-ONU allocation. The proposed mechanism introduces a unique direct communication between theONUs supported by identical dynamic bandwidth allocation algorithms running simultaneously ineach ONU. In addition to being fully distributed, the proposed scheme is asynchronous, scalable,and dynamic with flexibility and reliability in handling data, voice and video.

KEYWORDS

Agents, Decentralized DBA, Diffserv, Distributed Systems, EPON

Cite this paper

K. Sadon, S. , M. Hizan, H. , Kanesan, T. and Mohamad, R. 2016 Decentralized Traffic Control Using Agents in Ethernet Passive Optical Networks EPON. Communications and Network, 8, 193-203. doi: 10.4236-cn.2016.83019.





Autor: Sajaa K. Sadon*, Hizamel M. Hizan, Thavamaran Kanesan, Romli Mohamad

Fuente: http://www.scirp.org/



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