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Título:
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Performance of wireless LAN access methods in multicell environments
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Autor/a:
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López Aguilera, M. Elena; Heusse, Martin; Rousseau, Franck; Duda, Andrzej; Casademont Serra, Jordi
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Telemàtica; Universitat Politècnica de Catalunya. WNG - Grup de xarxes sense fils |
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Abstract:
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In this paper, we address the issue of evaluating performance of wireless LANs in multicell scenarios. We try to understand the complex behavior of the DCF (Distributed
Coordination Function) access method defined in the IEEE 802.11 standard [1] and its modifications proposed for improving performance: Slow Decrease [2], Asymptotically Optimal Backoff [3], and
Idle Sense [4]. We analyze the influence of overlapping cells and large multicell environments on their performance. Our results show that the IEEE 802.11 DCF and its two modifications (Slow Decrease and AOB) exhibit important unfairness between stations close to the access point and those near the border of a neighbor cell. Idle Sense performs much better: it provides much better fairness than the IEEE 802.11 DCF and its modifications. It also obtains the highest throughput when stations adapt their bit rate to channel conditions. |
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Abstract:
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Peer Reviewed |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Xarxes d'àrea local
-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Protocols de comunicació
-Local area networks (Computer networks)
-Computer network protocols
-Wireless LANs
-IEEE 802.11
-MAC
-Access protocols
-Xarxes d'àrea local sense fils (Xarxes d'ordinadors)
-Protocols de comunicació |
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Derechos:
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Tipo de documento:
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Objeto de conferencia |
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Editor:
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Institute of Electrical and Electronics Engineers
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