DocumentCode :
2943586
Title :
Joint association control, airtime sharing and contention resolution in multi-cell WLANs with directional antennas
Author :
Jun Zhang ; Wang, Jason Min ; Bensaou, Brahim
Author_Institution :
Dept. of Comput. Sci. & Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China
fYear :
2013
fDate :
1-5 July 2013
Firstpage :
837
Lastpage :
842
Abstract :
In this paper we study the problem of joint client association, airtime sharing and contention resolution in IEEE802.11 multi-cell WLANs with directional antennas with the goal of achieving optimal fair throughput. We formulate the problem as a non-linear programming problem and solve it under the network utility maximization framework. Using simulation, we demonstrate that i) the association pattern should try to balance the number of clients associated with each AP to use the capacity of more APs; ii) clients in the same transmission range of an antenna should always be associated with the same AP to avoid hidden node collisions.
Keywords :
cellular radio; directive antennas; nonlinear programming; telecommunication control; wireless LAN; AP; IEEE802.11 multicell WLAN; airtime sharing; contention resolution; directional antennas; joint association control; network utility maximization framework; node collisions; nonlinear programming problem; transmission range; Directional antennas; Directive antennas; Joints; Programming; Throughput; Transmitting antennas; Directional antennas; association control; contention resolution; multi-cell WLANs; optimization; proportional fairness;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Mobile Computing Conference (IWCMC), 2013 9th International
Conference_Location :
Sardinia
Print_ISBN :
978-1-4673-2479-3
Type :
conf
DOI :
10.1109/IWCMC.2013.6583666
Filename :
6583666
Link To Document :
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