Analysis of IEEE 802.11e Line Topology Scenarios in the Presence of Hidden Nodes
In this paper an innovative simulation study of five IEEE 802.11e network configurations is presented. The conducted analysis is crucial for understanding how a theoretically simple and, most of all, popular line topology network can be degraded by the presence of hidden and exposed nodes. The discussion of the obtained results helps to understand how and why the behavior of IEEE 802.11e based line topologies changes when the number of nodes increases. Furthermore, the usefulness of the four-way handshake mechanism is argued. Finally, the need for a better MAC protocol is stressed and a number of novel conclusions about the IEEE 802.11e nature is provided.
Keywordsad-hoc hidden and exposed nodes IEEE 802.11e
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- 1.IEEE 802.11e: Medium Access Control (MAC) Quality of Service Enhancements. IEEE Inc., New York(November 2005)Google Scholar
- 2.IEEE 802.11b: Higher-speed PHY extension in the 2.4 GHz band (1999)Google Scholar
- 3.TKN EDCA 802.11e extension (2006), http://www.tkn.tu-berlin.de/research/802.11e_ns2
- 4.Bai, X., Mao, Y.M.: The Impact of Hidden Nodes on MAC Layer Performance of Multi-hop Wireless Networks Using IEEE802.11e Protocol. In: International Conference on Wireless Communications, Networking and Mobile Computing 2007, WiCom 2007, pp. 1479–1483 (September 2007)Google Scholar
- 5.Kosek, K., Natkaniec, M., Vollero, L., Pach, A.R.: An Analysis of Star Topology IEEE 802.11e Networks in the Presence of Hidden Nodes. In: Proc. The International Conference on Information Networking 2008, ICOIN 2008, Korea (January 2008)Google Scholar