Abstract
The integration of ethernet passive optical networks (EPONs) and IEEE
802.16 has been lately presented as a promising candidate for next-generation
broadband access. This paper investigates the performance of the integrated
carrier when specific service bundles (SBs) with bandwidth
guarantee and diverse quality of service requirements are provisioned.
We first present a novel framework that fairly distributes the upstream network
capacity among the different SBs. We then propose a novel delay-based admission
control scheme to increase the network utilization and enable an inter-SB
statistical multiplexing. To obtain the expected delay of each SB stream,
a generic analytical model is developed. Based on this model, we further formulate
some important performance measures such as queuing delay, end-to-end (from
wireless user to the central office of PON) delay, average queue size and
optimal orthogonal frequency division multiplexing frame length. Numerical
results validate our analysis and highlight the advantages of the proposed
solution.
© 2011 Crown
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