Research Article
Analysis of fibre-loop optical buffers with a void-avoiding schedule
@INPROCEEDINGS{10.4108/icst.valuetools.2014.258180, author={Wouter Rogiest and Jan-Pieter Dorsman and Dieter Fiems}, title={Analysis of fibre-loop optical buffers with a void-avoiding schedule}, proceedings={8th International Conference on Performance Evaluation Methodologies and Tools}, publisher={EAI}, proceedings_a={VALUETOOLS}, year={2015}, month={2}, keywords={optical buffer fiber loop queueing polling discrete continuous}, doi={10.4108/icst.valuetools.2014.258180} }- Wouter Rogiest
Jan-Pieter Dorsman
Dieter Fiems
Year: 2015
Analysis of fibre-loop optical buffers with a void-avoiding schedule
VALUETOOLS
ICST
DOI: 10.4108/icst.valuetools.2014.258180
Abstract
In optical packet/burst switching, fibre-loop optical buffers provide a compact and effective means of contention resolution. In case of fixed packet length, the involved loop length is typically chosen matched (equal to the packet length), and the loops are arranged in parallel, constituting a single-stage buffer. In this contribution, we investigate the performance of such a buffer in an asynchronous network setting, assuming batch-Poisson arrivals and assuming a so-called void-avoiding schedule. We show that by time-discretisation, the fibre-loop dynamics can be captured by a particular type of exhaustive polling model. We obtain performance measures such as the moments of the optical queue content and packet delay for the discretised model as well as for the asynchronous optical buffer. We illustrate our approach by various numerical examples.
