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On unified quality of service resource allocation scheme with fair and scalable traffic management for multiclass internet services

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3 Author(s)
Abbas, G. ; Intell. & Distrib. Syst. Lab., Liverpool Hope Univ., Liverpool, UK ; Nagar, A.K. ; Tawfik, H.

This study concerns the problem of controlling multiclass (elastic, inelastic and unresponsive) Internet traffic without sacrificing quality of service (QoS) by adopting a unified `resource allocation and traffic management` approach. The aim is to minimise the need for relying on dedicated QoS traffic control mechanisms in order to avoid spiralling complicatedness that, in practice, leads to `robust yet fragile` Internet. In order to address this challenge, the authors first introduce an end-to-end non-convex network utility maximisation-based resource allocation algorithm to guarantee enhanced QoS to elastic and inelastic flows. Then, a pricing-based fair and scalable traffic management scheme, called Purge, is introduced to protect transmission control protocol-friendly traffic from unfairness attacks by unresponsive flows. Finally, the main contribution of this work, the unified algorithm, is developed by adapting Purge to complement link-control of the proposed resource allocation algorithm to enable it to enforce fairness while maintaining a scalable network core. The unified approach thus delivers QoS guarantees for multiclass traffic.

Published in:

Communications, IET  (Volume:5 ,  Issue: 16 )