Normalized measure of dispersion study for delay evaluation of mobile nodes in IEEE 802.11 multihop wireless networks

Faculty / School

Faculty of Computer Sciences (FCS)


Department of Computer Science

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Document Type

Conference Paper

Publication Date


Conference Name

2011 7th International Wireless Communications and Mobile Computing Conference

Conference Location

Istanbul, Turkey

Conference Dates

4-8 July 2011


80052509996 (Scopus)

First Page



Institute of Electrical and Electronics Engineers (IEEE)

Abstract / Description

In this paper we extend our recent work [3] by analyzing the behavior of mobility scenario in saturation conditions for evaluating packet delays. For the first time we have shown that the normalized measure of dispersion for service time intervals and offered load dependency holds for multi-hop IEEE 802.11 wireless networks with mobile nodes, as well. Thus this paper not only extends and validates our previous results but also establishes that wireless mobile networks have the similar dependency pattern. We further extend this work by showing that the service time intervals do not follow exponential distribution but instead follow gamma distribution. The patterns for the shape parameters are also established for accurately computing average end-to-end packet delay for mobile networks. The analytical model presented in this paper has been verified through extensive simulations.