An analytical model for IEEE802.11 networks running query-based applications
Pages 151 - 158
Abstract
An emerging field of application for IEEE 802.11 are Wireless Sensor Networks (WSNs) in which the network nodes do not have significant power and cost constraints, such as Vehicular WSNs employing the "under construction" standard IEEE 802.11p. In this paper we provide an analytical evaluation of the performance of IEEE 802.11 Distributed Coordination Function (DCF) in a query-based scenario. In such scenario each node transmits a single packet to a gathering center called sink only upon the sink request. Therefore previous analyses with the assumption of data traffic saturation [8] do not apply as in our case the number of nodes competing for the channel as well and the probability of packet collision are time dependent. Our mathematical model allows the evaluation of the probability that a node succeeds when accessing the channel as a function of time, packet length and number of network nodes. We also validate the results obtained with the model through simulation.
References
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I. F. Akyildiz, W. Su, Y. Sankarasubramaniam, E. Cayirci, "A Survey on Sensor Networks," IEEE Communications Magazine, Aug. 2002, 102--114.
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S. Yousefi, M. S. Mousavi and M. Fathy, "Vehicular Ad Hoc Networks (VANETs): Challenges and Perspectives," ITS Telecommunications Proceedings, 2006 6th International Conference on, pp. 761--766, Jun 2006.
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U. Lee, B. Zhou, M. Gerla, E. Magistretti, P. Bellavista and A. Corradi "Mobeyes: smart mobs for urban monitoring with a vehicular sensor network," IEEE Wireless Communications, vol. 13, no. 5, pp. 55--57, Oct. 2006.
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Wu, Hao, M. Palekar, R. Fujimoto, J. Lee, J. Ko, R. Guensler and M. Hunter, "Vehicular Networks in Urban Transportation Systems," Digital Government Conference, May 2005.
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J. P. Singh, N. Bambos B. Srinivasan and D. Clawin Wireless LAN performance under varied stress conditions in vehicular traffic scenarios," Vehicular Technology Conference, Proceedings VTC 2002-Fall, pp. 743--747, vol. 2, 2002.
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G. Bianchi, "Performance analysis of the IEEE 802.11 distributed coordination function," IEEE Journal on Selected Areas in Communications (JSAC), vol. 18, pp. 535--547, Mar 2000.
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C. Buratti and R. Verdone, "Performance analysis of IEEE 802.15.4 non-beacon enabled mode," accepted for publication on IEEE Transactions on Vehicular Technology, 2009.
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802.11, IEEE Standard for Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, 2007.
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Index Terms
- An analytical model for IEEE802.11 networks running query-based applications
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Published: 26 October 2009
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October 26, 2009
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PM2HW2N '09 Paper Acceptance Rate 15 of 41 submissions, 37%;
Overall Acceptance Rate 74 of 226 submissions, 33%
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