start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=2
article-no=
start-page=187
end-page=207
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=20171004
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Minimax Approach for Access Point Setup Optimization in IEEE 802.11n Wireless Networks
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Recently, an IEEE 802.11n access point (AP) prevailed over the wireless local area network (WLAN) due to the high-speed data transmission using the multiple input multiple output (MIMO) technology. Unfortunately, the signal propagation from the 802.11n AP is not uniform in the circumferential and height directions because of the multiple antennas for MIMO. As a result, the data transmission speed between the AP and a host could be significantly affected by their relative setup conditions. In this paper, we propose a minimax approach for optimizing the 802.11n AP setup condition in terms of the angles and the height in an indoor environment using throughput measurements. First, we detect a bottleneck host that receives the weakest signal from the AP in the field using the throughput estimation model. To explore optimal values of parameters for this model, we adopt the versatile parameter optimization tool. Then, we optimize the AP setup by changing the angles and the height while measuring throughput. For evaluations, we verify the accuracy of the model using measurement results and confirm the throughput improvements for hosts in the field by our approach.
en-copyright=
kn-copyright=

en-aut-name=Kyaw Soe Lwin
en-aut-sei=Kyaw Soe Lwin
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=TaniguchiChihiro
en-aut-sei=Taniguchi
en-aut-mei=Chihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=Khin Khin Zaw
en-aut-sei=Khin Khin Zaw
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=Md. Selim Al Mamun
en-aut-sei=Md. Selim Al Mamun
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=KuribayashiMinoru
en-aut-sei=Kuribayashi
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=KaoWen-Chung
en-aut-sei=Kao
en-aut-mei=Wen-Chung
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

affil-num=1
en-affil=Okayama University
kn-affil=

affil-num=2
en-affil=Okayama University
kn-affil=

affil-num=3
en-affil=Okayama University
kn-affil=

affil-num=4
en-affil=Okayama University
kn-affil=

affil-num=5
en-affil=Okayama University
kn-affil=

affil-num=6
en-affil=Okayama University
kn-affil=

affil-num=7
en-affil=National Taiwan Normal University
kn-affil=
en-keyword=Wireless local area network
kn-keyword=Wireless local area network
en-keyword=access point setup
kn-keyword=access point setup
en-keyword=MIMO
kn-keyword=MIMO
en-keyword=throughput estimation model
kn-keyword=throughput estimation model
en-keyword=parameter optimization
kn-keyword=parameter optimization
END