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QoS provisioning using traffic shaping and policing in 3rd-generation wireless networks

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2 Author(s)
Li, F.Y. ; Dept. of Telematics, Norwegian Univ. of Sci. & Technol., Trondheim, Norway ; Stol, N.

According to the recently presented QoS architecture by 3GPP, a traffic conditioner may be deployed to provide conformance of the negotiated QoS in UMTS. The traffic conditioning is performed by traffic shaping or/and policing. A framework of traffic conditioning with QoS provisioning in the 3G radio access network is proposed in this paper. The main idea of our traffic conditioning approach is to employ traffic shaping at each user equipment (UE) and traffic policing at the RNC. The traffic generated at each UE is regulated by a traffic shaper in the form of a token bucket, and the conformance of the traffic is policed at the RNC according to traffic policing policies. A system model based on the proposed framework is implemented. The simulation results regarding the impact of traffic shaping on packet discarding probability, the tradeoff between probability of non-compliance and shaping delay are also presented in this paper.

Published in:

Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE  (Volume:1 )

Date of Conference:

17-21 Mar 2002