![](/images/graphics-bg.png)
A Node-Regulated Deflection Routing Framework for Contention Minimization
Joint Authors
Nleya, Bakhe
Mutsvangwa, Andrew
Source
Journal of Computer Networks and Communications
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-08
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Information Technology and Computer Science
Abstract EN
Optical Burst Switching (OBS) paradigm coupled with Dense Wavelength Division Multiplexing (DWDM) has become a practical candidate solution for the next-generation optical backbone networks.
In its practical deployment only the edge nodes are provisioned with buffering capabilities, whereas all interior (core) nodes remain buffer-less.
In that way the implementation becomes quite simple as well as cost effective as there will be no need for optical buffers in the interior.
However, the buffer-less nature of the interior nodes makes such networks prone to data burst contention occurrences that lead to a degradation in overall network performance as a result of sporadic heavy burst losses.
Such drawbacks can be partly countered by appropriately dimensioning available network resources and reactively by way of deflecting excess as well as contending data bursts to available least-cost alternate paths.
However, the deflected data bursts (traffic) must not cause network performance degradations in the deflection routes.
Because minimizing contention occurrences is key to provisioning a consistent Quality of Service (QoS), we therefore in this paper propose and analyze a framework (scheme) that seeks to intelligently deflect traffic in the core network such that QoS degradations caused by contention occurrences are minimized.
This is by way of regulated deflection routing (rDr) in which neural network agents are utilized in reinforcing the deflection route choices at core nodes.
The framework primarily relies on both reactive and proactive regulated deflection routing approaches in order to prevent or resolve data burst contentions.
Simulation results show that the scheme does effectively improve overall network performance when compared with existing contention resolution approaches.
Notably, the scheme minimizes burst losses, end-to-end delays, frequency of contention occurrences, and burst deflections.
American Psychological Association (APA)
Nleya, Bakhe& Mutsvangwa, Andrew. 2020. A Node-Regulated Deflection Routing Framework for Contention Minimization. Journal of Computer Networks and Communications،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1182608
Modern Language Association (MLA)
Nleya, Bakhe& Mutsvangwa, Andrew. A Node-Regulated Deflection Routing Framework for Contention Minimization. Journal of Computer Networks and Communications No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1182608
American Medical Association (AMA)
Nleya, Bakhe& Mutsvangwa, Andrew. A Node-Regulated Deflection Routing Framework for Contention Minimization. Journal of Computer Networks and Communications. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1182608
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182608