Supporting differentiated quality of service in optical burst switched networks

Bin Zhou; Mostafa A. Bassiouni

doi:10.1117/1.2151852

1 January 2006 Supporting differentiated quality of service in optical burst switched networks

Bin Zhou, Mostafa A. Bassiouni

Author Affiliations +

Optical Engineering, Vol. 45, Issue 1, 015003 (January 2006). https://doi.org/10.1117/1.2151852

Abstract

We propose and evaluate two new schemes for providing differentiated services in optical burst switched (OBS) networks. The two new schemes are suitable for implementation in OBS networks using just-in-time (JIT) or just-enough-time (JET) scheduling protocols. The first scheme adjusts the size of the search space for a free wavelength based on the priority level of the burst. A simple equation is used to divide the search spectrum into two parts: a base part and an adjustable part. The size of the adjustable part increases as the priority of the burst becomes higher. The scheme is very easy to implement and does not demand any major software or hardware resources in optical cross-connects. The second scheme reduces the dropping probability of bursts with higher priorities through the use of different proactive discarding rates in the network access station (NAS) of the source node. Our extensive simulation tests using JIT show that both schemes are capable of providing tangible quality of service (QoS) differentiation without negatively impacting the throughput of OBS networks.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Bin Zhou and Mostafa A. Bassiouni "Supporting differentiated quality of service in optical burst switched networks," Optical Engineering 45(1), 015003 (1 January 2006). https://doi.org/10.1117/1.2151852

Published: 1 January 2006

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available