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Title: Code division multiple access enabled dynamic bandwidth allocation (CDBA) scheme for EPON
Authors: Inaty, Elie 
Raad, Robert
Fortier, Paul
Maier, Martin
Affiliations: Department of Electrical Engineering 
Department of Electrical Engineering 
Keywords: DBA
Round robin
Issue Date: 2012
Part of: Journal of optical communications and networks
Volume: 4
Issue: 3
Start page: 271
End page: 281
In this paper, a code division multiple access (CDMA) enabled dynamic bandwidth allocation (CDBA) algorithm is proposed for the upstream access scheme for Ethernet passive optical networks. The CDBA algorithm is based on two major components. The first is the parallel transmission capacity offered by CDMA according to the quality-of-service requirement, and the second is the scheduling algorithm, which uses the round robin technique. The CDBA algorithm is presented and its cycle time is derived. The performance of the proposed algorithm is studied, assuming that the traffic load is symmetric and that the packet arrivals are Poisson distributed. Extensive simulations have been performed in order to compare the proposed CDBA algorithm with existing dynamic bandwidth allocation algorithms that achieve good bandwidth utilization by use of polling schemes. It is shown that the CDBA algorithm can significantly improve the network performance in terms of packet delay, throughput, and queue size management as compared with the well-known interleaved polling with adaptive cycle time algorithm.
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Electrical Engineering

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