Design of Experiments TERM PROJECT Materials Can Affect a Wi-Fi Signal 1 By: Ms. Chanchhaya Chhorn Ms. Sujinda Takaew Mr. Amornsak Kanoktum Ms. Sopagna Chan Assoc.Prof.Dr. Jirachai Buddhakulsomsiri
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Design of Experiments TERM PROJECT
Materials Can Affect a Wi-Fi Signal
By: Ms. Chanchhaya Chhorn Ms. Sujinda Takaew
Mr. Amornsak Kanoktum
Ms. Sopagna Chan
Assoc.Prof.Dr. Jirachai Buddhakulsomsiri
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Content
I. Introduction
II. Experiment Design
III. Response Data at each block
IV. Data Analysis
V. Conclusion
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I. Introduction
Wi-Fi is the common name for a type of communication that allows electronic devices to exchange data or connect to the Internet wirelessly.
While Smartphone is a very popular device that people can use both for calling and entertain through internet using 3G or Wifi.
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People use smart phone
http://www.zeendo.com/info/wp-content/uploads/2012/10/smartphone-uses.jpg
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II. Experiment Design
Factors:
Room Wall Brick Glass WoodRouter Position Outside Inside
Door Open CloseDistance 2 4 6
Time 9 12 15
Level
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Block:
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Practical Area
Brick Wall (SIIT Room 303) Wooden Wall (Meeting Room of Faculty of Mathematics and
Statistic; Thammasat University)
Glass Wall (SIIT Residence Bangkadi
Campus)
Network Design
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Internet
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Transmitter-Receiver(Basic Position)
Figure 1: Router and Device are in room.
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Transmitter-Receiver(1st Position)
Figure 2: Router is outside of the room. Device is inside the room
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Transmitter-Receiver(2nd Position)
Figure 3: Router is inside of the room. Device is outside the room
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III. Response Data (324 Run) Ask Mr.K to send Excel Data File and input that file icon to this file
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IV. Data Analysis
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IV. Data Analysis
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IV. Data Analysis
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Fit Regression Model
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Model Assumption
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Response Optimizer Therefore, to minimize the signal transmitted from
Router, we can use condition set as optimizer below:
The most recommended result in this experiment is to select Wooden room, Put Router Inside the room, Open the Door and you can use your smart phone with distance of 2m from the Router at 9am.
CurHigh
LowD: 0.7946Optimal
Predict
d = 0.79461
Minimum-dBm Cha
y = -7.2222
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15
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Close
Open
Inside
Outside
Brick
WoodType Door Distance TimeRoom
Wood Inside Open 2 9