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A Framework of Efficient Hybrid Model and Optimal Control for Multihop Wireless Networks

Xu, K and Tipper, David and Krishnamurthy, Prashant and Qian, Yi (2012) A Framework of Efficient Hybrid Model and Optimal Control for Multihop Wireless Networks. In: ACM Sigmetrics/Performance, 12 June 2012 - 15 June 2012, London, UK.

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Abstract

The performance of multihop wireless networks (MWN) is normally studied via simulation over a fixed time horizon using a steady-state type of statistical analysis procedure. However, due to the dynamic nature of network connectivi- ty and nonstationary traffic, such an approach may be inap- propriate as the network may spend most time in a transien- t/nonstationary state. Moreover, the majority of the simu- lators suffer from scalability issues. In this work, we presents a performance modeling framework for analyzing the time varying behavior of MWN. Our framework is a hybrid mod- el of time varying connectivity matrix and nonstationary network queues. Network connectivity is captured using s- tochastic modeling of adjacency matrix by considering both wireless link quality and node mobility. Nonstationary net- work queues behavior are modeled using fluid flow based differential equations. In terms of the computational time, the hybrid fluid-based model is a more scalable tool than the standard simulator. Furthermore, an optimal control strategy is proposed on the basis of the hybrid model.


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Details

Item Type: Conference or Workshop Item (Poster)
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Xu, K
Tipper, Daviddtipper@pitt.eduDTIPPER
Krishnamurthy, Prashantprashk@pitt.eduPRASHK
Qian, Yi
Date: June 2012
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Publisher: ACM
Place of Publication: ACM Digital Library
Event Title: ACM Sigmetrics/Performance
Event Dates: 12 June 2012 - 15 June 2012
Event Type: Conference
Institution: University of Pittsburgh
Schools and Programs: School of Information Sciences > Telecommunications
Refereed: Yes
Date Deposited: 27 Jun 2012 15:03
Last Modified: 25 Aug 2017 05:07
URI: http://d-scholarship.pitt.edu/id/eprint/12527

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