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Publication Type : Conference Proceedings
Publisher : 2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Source : 2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (2009)
Keywords : Access points, Algorithm design and analysis, Analytical models, carrier sensing, cellular radio, channel allocation, channel assignment algorithm, channel assignment assignment, Electronic mail, fixed point analysis, Internet, IP networks, Local area networks, Media Access Protocol, multicell IEEE 802.11 WLAN, Nash equilibria, network throughput metric, Network topology, normalized network throughput, scalable cell level model, TCP-controlled file, telecommunication network topology, Throughput, throughput modeling, transport protocols, wireless channels, wireless LAN
Campus : Bengaluru
School : School of Engineering
Department : Electronics and Communication
Year : 2009
Abstract : We provide a simple and accurate analytical model for multi-cell IEEE 802.11 WLANs. Our model applies if the cell radius, R, is much smaller than the carrier sensing range, Rcs. We argue that, the condition Rcs >> R is likely to hold in a dense deployment of access points (APs). We develop a scalable cell level model for such WLANs with saturated nodes as well as for TCP-controlled long file downloads. The accuracy of our model is demonstrated by comparison with ns-2 simulations. Based on the insights provided by our analytical model, we propose a simple channel assignment algorithm which provides static assignments that are Nash equilibria in pure strategies for the objective of maximizing normalized network throughput, and requires only as many steps as there are channels. Furthermore, our channel assignment algorithm does not require any a priori knowledge of topology and can be implemented in a decentralized manner. In contrast to prior work, our approach to channel assignment is based on the throughput metric.
Cite this Research Publication : Manoj Kumar Panda and Kumar, A., “Modeling multi-cell IEEE 802.11 WLANs with application to channel assignment”, 2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks. 2009.