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Dynamic Offset Contention Window (DOCW) Algorithm for Wireless MAC in 802.11e Based Wireless Home Networks

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Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2524))

Abstract

To differentiate services for various traffic categories (TCs) in 802.11eD.2.0 [1], TCs possess different minimum contention window (CW min ) values, which are static over duration. Performances of low priority traffics (FTP) with higher CW min values are suppressed even during absence of high priority traffics (video and voice). In this paper, we propose a modified backoff scheme called Dynamic Offset Contention Window (DOCW) algorithm, which dynamically adjusts CW values of traffics to network conditions. It is shown by simulations that the proposed algorithm enhances throughputs of low priority traffics where QoS is provided as well.

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References

  1. A. Lindgren, A. Almquist, and O. Schelen, Evaluation of Quality of Service Schemes for IEEE 802.11 Wireless LANs, In Proc. IEEE Conf. on LCN 2001, Tampa, USA, Nov. 2001.

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  2. S. Mangold et al., IEEE 802.11e Wireless LAN for Quality of Service, in Proc. European Wireless (EW’2002), Florence, Italy, Feb. 2002

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  3. S. Keshav, An Engineering Approach to Computer Networking: ATM networks, the Internet, and the telephone network, MA: Addison-Wesley, 1999, pp. 136–142.

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  4. UC Berkeley, CMU Monarch Projects and Sun Microsystems, The Network Simulator-ns-2, [Online]. Available: http://www.isi.edu/nsnam/ns

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© 2003 Springer-Verlag Berlin Heidelberg

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Hyung Kim, T., Marwitz, L., Ku Kim, D. (2003). Dynamic Offset Contention Window (DOCW) Algorithm for Wireless MAC in 802.11e Based Wireless Home Networks. In: Lee, J., Kang, CH. (eds) Mobile Communications. CIC 2002. Lecture Notes in Computer Science, vol 2524. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36555-9_18

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  • DOI: https://doi.org/10.1007/3-540-36555-9_18

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-00732-6

  • Online ISBN: 978-3-540-36555-6

  • eBook Packages: Springer Book Archive

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