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Performance/capacity gains from QoS differentiation in HSDPA networks : An operator perspective

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Author: Litjens, R. · Hendriks, R.W.
Source:4th Joint IFIP Wireless and Mobile Networking Conference, WMNC 2011, 26-28 October 2011, Toulouse, France
Identifier: 446419
doi: doi:10.1109/WMNC.2011.6097235
Article number: No.: 6097235
Keywords: capacity management · Cellular networks · HSDPA · packet scheduling · performance evaluation · QoS differentiation · Capacity management · Cellular network · HSDPA · Packet scheduling · Performance evaluation · Neural networks · Mobile telecommunication systems · Network management · Vital ICT Infrastructure · Information Society · Communication & Information · PNS - Performance of Networks & Services · TS - Technical Sciences


Mobile network operators are currently preparing the introduction of QoS differentiation mechanisms in their 3G networks, as a means to support service-specific quality requirements, to enable the offering of distinct subscription forms and/or to enhance the resource efficiency and hence network capacity. In this paper we quantify the attainable performance and/or capacity gains from introducing QoS differentiation in an HSDPA network, considering distinct scenarios of subscription- and service-based differentiation. We demonstrate how the significance of the achievable performance impact and capacity gains depends on the applied differentiation weight, the traffic characteristics, the service mix and the class-specific performance requirements. For scenarios with reasonable traffic mixes and performance requirements, capacity gains of 20%-30% appear very well possible.