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Latency analysis of ratio-counter based dynamic bandwidth allocation algorithm for passive optical networks

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2 Author(s)
Ali Haider ; Optical Communications Labs, Optical Science and Engineering, UNC Charlotte, Charlotte, NC 28223 ; M Yasin Akhtar Raja

We present latency analysis of an efficient bandwidth allocation algorithm for Passive Optical Networks (PON). Ratio-Counter based Dynamic Bandwidth Allocation Algorithm (RC-DBA) was proposed in our earlier work. This paper presents a latency based mathematical model for RC-DBA and its comparative performance with respect to other algorithms. Scenarios for light and heavy traffic have been analyzed. Results show that RC-DBA performs better in terms of efficiently allocating bandwidth among ONUs. ONUs those do not require bandwidth are not allocated a slot. Unused slots are allocated based on requirements (residual or new) given by ONUs. ONUs those require bandwidth are allocated multiples of a dynamically calculated unit based on ratio counting. RC-DBA provides better latency performance than other schemes for both Poisson and Pareto distributed arrivals.

Published in:

Computers and Communications (ISCC), 2012 IEEE Symposium on

Date of Conference:

1-4 July 2012