The document discusses an experiment on Wi-Fi signal strength and smartphone usage, highlighting factors that affect signal transmission such as wall materials and router placement. It concludes that the optimal setup for using smartphones involves placing the router inside a wooden room with the door open, positioned 2 meters away at 9 am. The findings emphasize the importance of environmental factors in wireless communication efficiency.

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By:
Ms.Chanchhaya
Chhorn Ms.Sujinda Takaew
Mr.AmornsakKanoktum
Ms.Sopagna Chan
Assoc.Prof.Dr. Jirachai
Buddhakulsomsiri

2. I. Introduction
II. Experiment Design
III. Response Data at each block
IV. Data Analysis
V. Conclusion
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3.  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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4.  People use smart phone
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http://www.zeendo.com/info/wp-content/uploads/2012/10/smartphone-
uses.jpg

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6.  Factors:
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Room Wall Brick Glass Wood
Router Position Outside Inside
Door Open Close
Distance 2 4 6
Time 9 12 15
Level

7.  Block:
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Brick Wall (SIIT Room 303)
Wooden Wall (Meeting Room of
Faculty of Mathematics and
Statistic; Thammasat University)
Glass Wall (SIIT
Residence Bangkadi
Campus)

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Internet

10.  Figure 1: Router and Device are in room.
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11. Figure 2: Router is outside of the room. Device is inside the
room
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12. Figure 3: Router is inside of the room. Device is outside the room
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13.  Ask Mr.K to send Excel Data File and
input that file icon to this file
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19.  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.
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