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Erschienen in:
2012 | OriginalPaper | Buchkapitel
A Service Model Based on Stochastic Network Calculus in Wireless Mesh Networks
verfasst von : Gaocai Wang, Nao Wang, Mingxing Lai
Erschienen in: Business, Economics, Financial Sciences, and Management
Verlag: Springer Berlin Heidelberg
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Stochastic service model is abstract expression of service capability of network node from probability meaning in stochastic network calculus. It is determined by channel capacity and scheduling strategy of one node. In this paper, we firstly propose a stochastic service curve for individual traffic flows based on improved WFQ (Weight Fair Queuing) scheduling in wireless mesh networks. So, our service model has greater fairness for arrival flows. To simplify performance evaluation of the whole network, we present an end-to-end stochastic service curves for aggregation flows. It can encapsulate and shield QoS requirements of different type arrival flows. The numerical results show that the stochastic service model is effective based on real-time and non-real-time stochastic service curve of arrival flows.