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Online association policies in IEEE 802.11 WLANs

Kasbekar, Gaurav S and Kuri, Joy and Nuggehalli, Pavan (2006) Online association policies in IEEE 802.11 WLANs. In: 4th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, APR 03-07, 2006, Boston, MA,, pp. 254-263.

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Abstract

In this paper, we study the performance of client-Access Point (AP) association policies in IEEE 802.11 based WLANs. In many scenarios, clients have a choice of APs with whom they can associate. We are interested in finding association policies which lead to optimal system performance. More specifically, we study the stability of different association policies as a function of the spatial distribution of arriving clients. We find for each policy the range of client arrival rates for which the system is stable. For small networks, we use Lyapunov function methods to formally establish the stability or instability of certain policies in specific scenarios. The RAT heuristic policy introduced in our prior work is shown to have very good stability properties when compared to several other natural policies. We also validate our analytical results by detailed simulation employing the IEEE 802.11 MAC.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to Institute of Electrical and Electronics Engineers.
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly, (CEDT) Centre for Electronic Design & Technology)
Date Deposited: 10 Aug 2010 04:28
Last Modified: 19 Sep 2010 06:12
URI: http://eprints.iisc.ernet.in/id/eprint/30688

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