A novel RWA scheme based on proactive contention avoidance mechanism in optical networks

Guangjun Shan; Tianlin Dong; Guangxi Zhu

doi:10.1117/12.822667

23 February 2009 A novel RWA scheme based on proactive contention avoidance mechanism in optical networks

Guangjun Shan, Tianlin Dong, Guangxi Zhu

Proceedings Volume 7278, Photonics and Optoelectronics Meetings (POEM) 2008: Fiber Optic Communication and Sensors; 727813 (2009) https://doi.org/10.1117/12.822667
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

This paper proposes a proactive contention avoidance mechanism through dedicated wavelength assignment method in the optical burst switching network. In our scheme, one or more dedicate wavelengths are assigned to each ingress node and each ingress node transmits incoming bursts to various destination with its dedicated wavelength. Therefore contention at intermediate core nodes can be avoided and contention is localized at each ingress node, in where this situation can be resolved by means of electric buffer. Furthermore, based on the status of traffic distribution, we propose a constructive scheme to construct a load-balanced spanning tree for each ingress node, where input loads are balanced appropriately among each output port of ingress node. And, identical wavelength can be shared with bursts transmitted to different destination nodes within the spanning tree. Thus our scheme has statistical multiplex gain and it expected to utilize wavelength effectively. Simulation result indicates the burst loss performance can be improved drastically without wavelength conversion comparing with those algorithms that completely shared wavelength link.

Citation Download Citation

Guangjun Shan, Tianlin Dong, and Guangxi Zhu "A novel RWA scheme based on proactive contention avoidance mechanism in optical networks", Proc. SPIE 7278, Photonics and Optoelectronics Meetings (POEM) 2008: Fiber Optic Communication and Sensors, 727813 (23 February 2009); https://doi.org/10.1117/12.822667

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