Paper Info
Title
A simulation study of adaptive burst assembly algorithms in optical burst switched networks with self-similar traffic sources
Abstract
It has been extensively demonstrated that the traffic pattern in today's Internet is Self-Similar. Burst assembly algorithms utilized in optical burst switched (OBS) edge routers can be used to reduce the degree of self-similarity. This work investigates the impact of time and size-based burst assembly algorithms utilized in OBS edge routers, on the self-similarity level of the output traffic. Both static and adaptive algorithms are examined. Our study is based on the OPNET simulation tool focusing on the characteristics of the output traffic in the presence of self-similar input traffic. To estimate the Hurst parameter of the aggregated input and output traffic streams, we have applied various Hurst parameter estimators. The performance impact of the burst assembly algorithms in terms of burst assembly delay and its jitter is also assessed. Our study has shown that the burst assembly mechanism at the OBS edge router reduces the self-similarity level of the output traffic and that this reduction depends on the parameters of the algorithm. Our results reveal that the proposed adaptive burst assembly algorithm performs better comparing to its non-adaptive counterpart.
Year
Venue
Keywords
2007
ANNALS OF TELECOMMUNICATIONS
optical telecommunication,Internet,optical switching,similitude,modeling,numerical simulation,burst switching,traffic control,traffic burstiness
Field
DocType
Volume
Airfield traffic pattern,Hurst exponent,Burst switching,Algorithm,Input/output,Electronic engineering,Adaptive algorithm,Jitter,Packet switching,Router,Mathematics
Journal
62
Issue
ISSN
Citations 
5-6
0003-4347
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Siamak Azodolmolky1105141.98
Anna Tzanakaki217732.70
ioannis tomkos356475.05