Quality of Service Provisioning in Integrated Service Networks

This dissertation presents QoS(Quality of Service) provisioning in integrated service networks from network design and management perspectives. The main features of this work are summarized below. (1) A systematic procedure for full bandwidth allocation is proposed using a linear system with constraints applied to the design and management of networks with various configurations. A full bandwidth allocation is required for networks such as backbone networks or WANs(Wide Area Networks). With this procedure, simultaneous bandwidth allocation can be made for all bandwidth requests from source and destination pairs. (2) Given the bandwidth allocation, the performance of the network is analyzed by modeling the traffic source using the Markov Modulated Fluid Model, and a set of differential equations are derived to describe the equilibrium buffer distribution. The performance analyses of individual flows are presented with the numerical results. (3) To provide QoS in a shared link, a new link sharing scheme, called the CARA scheme is proposed. By decoupling the runtime rate and the worst case rate for a flow, the CARA scheme provides differentiated services according to traffic constraints, while guaranteeing the worst case QoS.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Computer Science

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Choi, Woongchul

Contributors dc:contributor

• Kang, Sung-Mo (Steve)

• Computer Science

Language dc:language

eng

Identifier

(MiAaPQ)AAI3017049

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/81571