フルテキストURL IJNC_7_2_187.pdf
著者 Kyaw Soe Lwin| Funabiki, Nobuo| Taniguchi, Chihiro| Khin Khin Zaw| Md. Selim Al Mamun| Kuribayashi, Minoru| Kao, Wen-Chung|
抄録 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.
キーワード Wireless local area network access point setup MIMO throughput estimation model parameter optimization
発行日 2017-10-04
出版物タイトル International Journal of Networking and Computing
7巻
2号
出版者 IJNC Editorial Committee
開始ページ 187
終了ページ 207
ISSN 21852847
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
論文のバージョン publisher
DOI 10.15803/ijnc.7.2_187
関連URL isVersionOf https://doi.org/10.15803/ijnc.7.2_187