Wireless Networking: Fundamentals and Applications

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Wireless Networking:

Fundamentals and Applications

PROF. MICHAEL TSAI 2015 SPRING

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Before we start:

Filtering mechanism

•  We have:

•  (A) The 71 registered student for this course

•  (B) Those who is not registered, and want to get “the code” to register

•  Bad news:

we only have limited sets of hardware for projects

•  Question: how do we determine who can get in?

•  Solution: a ﬁltering mechanism à I will tell you at the end

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Before we start:

Warnings

•  Third time to teach the course + 1 new assignment

•  Be prepared to time-‐consuming lab assignments (10+, 20+, or 30+ hrs per assignment!)

Expect lots of hands-‐on time.

•  Will do my best to prepare the lectures,

but don’t know if they will be easy to absorb

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Course Objective

•  Learn about wireless communications and networks

•  Why is it so diﬀerent from wired communications and networks?

•  Wireless communications = lots of random errors, less reliable

•  Not so complicated, even a CS student can understand it. J

•  See the course outline on the course website …

•  And the next page

(課程大綱在下面幾頁…我

有在課程一開始的時候說喔 ~~~)

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Fundamentals

•  Basics of wireless communications

•  Radio propagation (below physical layer)

•  Modulation (physical layer)

•  Spread spectrum (physical layer)

•  Diversity (physical layer)

•  Media Access Control (MAC) protocol for Wireless

•  Routing in Wireless Networks

•  Transport Layer over Wireless Not so fundamental:

•  Advanced topics in research papers

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Applications

•  Visible Light Communications (VLC)

•  Vehicular Networks (called VANET sometimes)

•  WiFi (Wireless LAN, WLAN)

•  Wireless Sensor Networks

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Hands-‐on Experience

•  4 lab assignments

•  Completed by teams of 5 (16 teams)

•  Goal:

•  Learn from your own experience (1^st hand)

•  Not from the lectures/the books (2^nd hand)

•  Fun!

•  Cons: need to spend lots of time (20+ hrs per assignment, on average)

•  Final project of your own choice, related to our course

(cannot be related to your research – 大學專題, 碩論, etc.)

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Prerequisite

•  I would like to say….NONE,

•  but the truth is…

•  Just a few ones on the list:

•  You know the C programming language

•  Good at using Google to look for answers (not kidding, very important)

•  Some basic knowledge about probability & calculus (basic is the key word, and we will cover some)

•  You are really interested in wireless communications & networks

•  Optional, but good to have:

•  You have taken “Computer Networks”

•  You have taken “Data structure” and/or “Algorithm”

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Course grade

Items Weight

Project assignments:

project 1 15%

project 2 15%

project 3 15%

project 4 15%

Final project 27%

Per class quiz 13(+1 bonus)%

•  No exams! But quizzes every week (don’t know when)

•  Mapping from 100% score to the letter grade determined later

•  Since this is not a required course, the general idea is that we

will be generous given that you completed all assignments. 9

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References

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Chandra, Dobkin, Bensky, Lexa, Lide, and Dowla, “Wireless Networking – know it all,”

Newnes, 2007

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References

Andrea Goldsmith, Wireless Communications,

Cambridge University Press, 2005 Theodore S. Rappaport, Wireless

Communications: Principles and Practice, 2^nd

Edition, 2002 11

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The teaching team

Teaching Assistants

蔡欣穆 (Michael)

Direct your questions to:

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E-‐mail: wn@csie.ntu.edu.tw Facebook group:

https://www.facebook.com/groups/wn2015spring/

TA Oﬃce Hour : Thur. 16:00~17:00

林靜茹 (Kate)

中研院資創中心曾華彥黃昶榮

李佳福

吳欣宜陳冠廷

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Zero-‐tolerance policy (Plagiarism)

•  We will NOT tolerate any PLAGIARISM (Quiz/Lab/

Homework).

•  Students who gets caught will get an

F

, no second chance.

(+ possible university disciplinary actions)

•  The TA’s will look for

•  (1) signs of copied codes in your project assignment source codes

•  (2) content in your ﬁnal project is found somewhere else

•  *For handwritten homework, please indicate references for each problem

•  Books or Internet URL or a person.

•  If none, then indicate “none”.

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Zero-‐tolerance policy (assignment deadline)

•  Homework deadline is HARD deadline.

•  You get

0

point for the homework after the submission deadline

•  You get

0

point for the lab if you don’t demo on time/submit the source code to the repository

•  However, we will still grade it for you, if you choose to submit it (after the deadline)

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My teaching style

•  Interactions in the class

•  Please please please please ask me questions

•  (Or I will ask you questions…)

•  No question is dumb question

•  (Since lots of you have very little background knowledge)

•  Class material is easy to understand

•  New: handwritten materials, prepare to take note

•  But project assignments require lots of eﬀorts

•  English slides but taught in Mandarin

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Misc. Information

•  Class time: Friday 09:10-‐12:10,

•  Will take a break when more than 30% of students is about to fall into sleep

•  Classroom: CSIE R102

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Lab 1: CamCom

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Transmitter: Zigduino (Arduino variant) + tri-‐color LED

Receiver: camera sensor

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Filtering

•  收80人, 5人一組, 共16組

•  五個project必須以同一組人力完成

•  組中有中途退選的, 必須以該組剩下人力完成, 不再調整分組.

• 

今天(3/6) 17:59 前找好組員，並完成 2015 WNFA 小組登記表的 Google 表單填寫

http://goo.gl/forms/Oy2DGsco2T

•  系級

•  學號

•  姓名

•  常用信箱

•  是否已經選上課程(Y/N)

•  排序:

•  1. 計算整組積分

•  大四 / 碩二 +1

•  大二 / 大一 -‐1

•  資訊學群科系 +1

•  電機資訊學院外科系所 -‐1

•  2. 排序完畢以後取前16組

•  3. 積分平手的, 以填寫Google表單的時間作排序

•  4. 名單將於今晚 23:59 以前公布。於名單內但未選上課程的同學會在今晚 23:59 以前寄送授權碼

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Recap

•  wn@csie.ntu.edu.tw is the e-‐mail to us

•  Course website:

http://www.csie.ntu.edu.tw/~wn

•  Join Facebook Group:

https://www.facebook.com/groups/wn15spring/

•  Feel free to come and talk to me after the class

•  Next Friday: 09:10-‐12:10

•  Questions?

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Wireless Networking: Fundamentals and Applications