Quantitative QoS guarantees in labeled optical burst switching networks

Ayman Kaheel, Hussein Alnuweiri

Research output: Contribution to conferencePaper

8 Citations (Scopus)


This paper presents a detailed architecture for providing quantitative quality of service guarantees in Labeled Optical Burst Switching (LOBS) networks. In the proposed architecture, packets are assembled into data bursts based on their respective Forwarding Equivalence Class (FEC) at ingress nodes. The burst assembly algorithm employs two parameters to control the burst blocking probability and burst assembly delay. We deploy a Fair Packet Queueing (FPQ) algorithm in each edge node to regulate access to a wavelength scheduler. For LOBS core nodes, we present a novel approach that applies FPQ scheduling algorithms to the control plane of these nodes to guarantee fair bandwidth allocation. Based on the information provided by the queued control bursts, the core FPQ algorithm creates a virtual queue of data bursts in core nodes, then it selects the eligible control burst to be processed by the wavelength scheduler. In addition, we present analytical expressions for the worst case delay and the blocking probability in the proposed architecture. Simulation results demonstrate that the proposed architecture provides accurate and controllable service differentiation in LOBS networks.

Original languageEnglish
Number of pages7
Publication statusPublished - 1 Dec 2004
EventGLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
Duration: 29 Nov 20043 Dec 2004


OtherGLOBECOM'04 - IEEE Global Telecommunications Conference
CountryUnited States
CityDallas, TX


ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kaheel, A., & Alnuweiri, H. (2004). Quantitative QoS guarantees in labeled optical burst switching networks. 1747-1753. Paper presented at GLOBECOM'04 - IEEE Global Telecommunications Conference, Dallas, TX, United States.