Wireless Hybrid QoS Architecture with an Enhancement of Fair Intelligent Congestion Control

Li Zheng, Doan B. Hoang, Ming Li

iNEXT-UTS Centre for Innovation in IT Services and Applications, Faculty of Engineering and Information Technology, University of Technology, Sydney, Australia.
School of Engineering and Information Technology, Deakin University, Geelong, Australia.

DOI: 10.4236/wet.2012.33018                

Abstract

More subtle and explicit QoS control mechanisms are required at the radio access level, even though the simple and scalable Differentiated Services (DiffServ) QoS control model is acceptable for the core of the network. At the radio access level, available resources are severely limited and the degree of traffic aggregation is not significant, thus rendering the DiffServ principles less effective. In this paper we present a suitable hybrid QoS architecture framework to address the problem. At the wireless access end, the local QoS mechanism is designed in the context of IEEE 802.11 WLAN with 802.11e QoS extensions; so streams of those session-based applications are admitted, established according to the traffic profile they require, and guaranteed. As the core in the Admission Control of the hybrid QoS architecture, the Fair Intelligent Congestion Control (FICC) algorithm is applied to provide fairness among traffic aggregates and control congestion at the bottleneck interface between the wireless link and the network core via mechanisms of packet scheduling, buffer management, feedback and adjustments. It manages effectively the overloading scenario by preventing traffic violation from uncontrolled traffic, and providing guarantee to the priority traffic in terms of guaranteed bandwidth allocation and specified delay.

Keywords

Hybrid QoS for Wireless Network; Traffic Stream Admission Control; Traffic Specifications; Fair Intelligent Congestion Control

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	C. N. Long, B. Li; Q. Zhang, B. Zhao, B. Yang and X. P. Guan, “The End-to-End Rate Control in Multiple-Hop Wireless Networks: Cross-Layer Formulation and Opti-mal Allocation,” IEEE Journal on Selected Areas in Communications, Vol. 26, No. 4, 2008, pp. 719-731. doi:10.1109/JSAC.2008.080513
[2]	S. Dixit, Y. L. Guo and Z. Antoniou, “Resource Management and Quality of Service in Third Generation Wireless Networks,” IEEE Communications Magazine, Vol. 39, No. 2, 2001, pp. 125-133. doi:10.1109/35.900641
[3]	R. Koodli and M. Puuskari, “Supporting Packet-Data QoS in Next Generation Cellular Networks,” IEEE Communications Magazine, Vol. 39, No. 2, 2001, pp. 180-188. doi:10.1109/35.900650
[4]	I. A. García-Macías, F. Rousseau, G. Berger-Sabbatel, L. Toumi and A. Duda, “Quality of Service and Mobility for the Wireless Internet,” Proceedings of the 1st Workshop on Wireless Mobile Internet, Rome, July 2001, pp. 34-42.
[5]	D. B. Hoang and H. T. Phan, “End-Diff: An End-to-End QoS Architecture,” International Symposium on Communications and Information Technologies, Sydney, 16-19 October 2007.
[6]	H. T. Phan and D. B. Hoang, “FICC-DiffServ: A New QoS Architecture Supporting Resources Discovery, Admission and Congestion Controls,"” International Conference on Information Technology and Applications, Sydney, 4-7 July 2005.
[7]	H. T. Phan and D. B. Hoang, “Extension of BGP to Support Multi-Domain FICC-Diffserv Architecture,” IEEE Conference on Advanced Information Networking and Applications, Vienna, 18-20 April 2006.
[8]	C. Park, F. Hernández-Campos, J. S. Marron and F. D. Smith, “Long-Range Dependence in a Changing Internet Traffic Mix,” Computer Networks: The International Journal of Computer and Telecommunications Networking, Vol. 48, No. 3, 2005, pp. 401-422.