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Title:
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Performance evaluation of directional antenna-assisted MAC protocols in the presence of mobility
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Author:
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Alonso Zárate, Luis Gonzaga; Verikoukis, Christos; Koutsopoulos, Iordanis
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GRCM - Grup de Recerca en Comunicacions Mòbils |
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Abstract:
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Adaptive antenna arrays, access conttol protocols,
user mobility, location caching, multiple transceivers |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
-Wireless LANs
-Distributed queuing MAC
-IEEE 802.11
-The basic feature of the emerging IEEE 802.11n and
other standards for high throughput is the presence of directional
antennas at network nodes. In this work
-we evaluate the
performance of media access control protocols in envisioned
IEEE 802.11n wireless LANs that operate in point coordination
function (PCF) mode. The Access Point (AP) is equipped with an
adaptive antenna array. An underlying objective of the access
control protocol is to identify and localize individual users in
order to transmit information to them. The performance metric
is the required time for localization of all users. In an earlier
work [3]
-access control protocols are studied
-that employ
directional transmissions with contention-based or contentionfree
polling methods to locate users residing in or out of coverage
range of the AP. However
-the location of users is oftentimes
subject to changes due to mobility.
-Cues, Teoria de
-Xarxes d'àrea local sense fils (Xarxes d'ordinadors) |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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National Technical University of Athens
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