Fair bandwidth allocation using effective multicast traffic share in TDM-PONs

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In this paper, the effects of optical traffic-sharing on the performance of multicast video delivery in terms of the efficiency of bandwidth allocation and the fairness of link-sharing are discussed for the downstream direction of a time-division-multiplexed passive optical network (TDM-PON). We analyze the practical issues associated with multicast packet switching and transmission control in a TDM-PON and also propose a fair bandwidth allocation mechanism, called share-based proportional bandwidth allocation (S-PBA), to effectively support multicast services. In order to provide an optical network unit with a fair amount of link bandwidth and high throughput independent of traffic type, S-PBA arbitrates the amount of unicast timeslot by using effective multicast traffic share, which is determined based on multicast traffic load distribution and traffic-sharing density. Analytic and simulation results clearly validate the effectiveness of the proposed mechanism. This work is applicable to multicast video delivery or multicast traffic transmission in general, such as voice traffic, or a combination of both in the case of video conferencing, for example.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2008
Language
English
Article Type
Article
Keywords

VIDEO DELIVERY; SERVICES

Citation

JOURNAL OF LIGHTWAVE TECHNOLOGY, v.26, no.5-8, pp.756 - 767

ISSN
0733-8724
DOI
10.1109/JLT.2007.916485
URI
http://hdl.handle.net/10203/16329
Appears in Collection
EE-Journal Papers(저널논문)
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