#### Synopsis

This course introduces the fundamental elements of analog and digital communication systems. The focus will be on the mathematical analysis of the signals and basic building blocks of communication systems. Performance of digital communication systems in the presence of noise will be discussed towards the end. The skills and knowledge gained from this class are essential for other advanced communication courses such as, data communications, computer network, digital communication systems, and mobile communication.

#### Announcements

- One HW8 has no name. If this is your HW, please contact Dr.Prapun ASAP.
**Information regarding final exam**- Date: 11 Dec 2015

- TIME: 09:00 - 12:00

- ROOM: BKD 2506, 2605
- Dr. Prapun will visit each exam room regularly. In general, there is no need to ask the proctor to call for Dr. Prapun.

- Closed book. Closed notes.
- Basic SIIT-approved calculators, e.g,. FX-991MS, are permitted.
- Same
**A4 sheet from the midterm**is allowed.- Add more formulas or information on the remaining side (or in the remaining space(s)).
- Must be hand-written in your own handwriting.
- No small pieces of paper notes glued/attached on top of it.
- Indicate your name and ID on the upper right corner of the sheet (in portrait orientation).
- Do not modify (,e.g., add/underline/highlight) content on the sheet inside the exam room.
- Submit your A4 sheet with your exam. (You can get it back from me after the final is graded.)
- 1 pt

- 10 pages + 1 cover page
- 15 Questions (7+10+8+16+3+11+10+2+3+10+6+6+3+4+1)
- Cover all the materials that we discussed in class and practiced in the HWs.
- Material Distribution (score-wise; rounded to the nearest nultiples of 5): Sec 4 (20) + Section 5 (25) + Section 6 (35) + Section 7 (10) + Section 8 (5)

- For your studying pleasure....
- All post-midterm annotated notes combined in one pdf file.
- All post-midterm HWs and their solutions
- All post-midterm slides
- All post-midterm quiz solutions

- Date: 11 Dec 2015
- No class on Nov 12 (Thursday)
- Make-up class: 2:40-4PM on Nov 19 (Thursday)
- See the announcement

- Midterm results [Posted @ 6PM on Oct 15]
**Information regarding midterm exam**- Date: 5 Oct 2015

- TIME: 09:00 - 12:00

- ROOM: BKD 3207
- Closed book. Closed notes.
- Basic SIIT-approved calculators, e.g,. FX-991MS, are permitted.
- 8 pages + 1 cover page
- 13 questions (8+3+6+7+3+2+36+3+3+6+13+2+7) + 1 pt (A4 submission) + 1 pt extra credit

- Date: 5 Oct 2015
- One
**A4 page**allowed.- Must be hand-written in your own handwriting.
- No small pieces of paper notes glued/attached on top of it.
- Indicate your name and ID on the upper right corner of the sheet (in portrait orientation).
- Do not modify (,e.g., add/underline/highlight) content on the sheet inside the exam room.
- Submit your A4 sheet with your exam. (You can get it back from me after the midterm is graded.)
- 1 pt

- Cover all the materials that we discussed in class and practiced in the HWs.
- Material Distribution (score-wise): 19% (Sec 1-2) + 35% (Sec 3) + 30% (Sec 4.1-4.3) + 15% (Sec 4.4 + Instantaneous freq)

- For your studying pleasure....
- All pre-midterm annotated notes combined in one pdf file.
- "Solution for Quiz " is a part of the lecture notes

- All pre-midterm HWs and their solutions
- Graded HWs can be picked up from the green box outside the EC secretary office (room 3514).

- All pre-midterm slides
- Sample Exam: This is an actual exam from 2011.
- May not be a good example of the exam we will have this year because it
.*covered quite different topics*- You may skip Q5a-b, 7, 9b, 10b, 11.
- Q12 may be quite difficult without further in-class discussion but it is still doable.

- The HWs and their solutions may provide better sample questions.

- You may skip Q5a-b, 7, 9b, 10b, 11.

- May not be a good example of the exam we will have this year because it
- For those who have already obtained the textbook [C&C], this table gives the corresponding positions (if any) in the textbook that correspond to the material dfiscussed in class.
- Room change:
- Tuesday: BKD 3509

- Note that we also share the tutorial session (Wednesday, 09:20-10:20, BKD2601) with ECS315. Do not register for this class if you are not available during that time slot.
- This site can be accessed via prapun.com/ecs332
- A basic RSS feed is created to track and inform updates
- Welcome to ECS332! Feel free to look around this site.

#### General Information

**Instructor**: Asst. Prof. Dr.Prapun Suksompong (prapun@siit.tu.ac.th)- Office: BKD, 4th floor of Sirindhralai building
- Office Hour: M 9:30-10:30, M 14:00-16:00, R 16:00-17:00

**Course Syllabus**

- Textbook: [C&C] A. Bruce Carlson and Paul B. Crilly, Communication Systems: An Introduction to Signals and Noise in Electrical Communication, McGraw-Hill, 2010, 5th International edition.
- Call No. TK5102.5 C3 2010. ISBN: 978-007-126332-0.
- Companion Site

- References
- [Z&T] Rodger E. Ziemer and William H. Tranter, Principles of Communications, 6th International student edition, John Wiley & Sons Ltd, 2010.
- Call No. QA273 Y384 2005. ISBN: 978-0-471-27214-4
- Student Companion Site

- [L&D] B.P. Lathi and Zhi Ding, Modern Digital and Analog Communication Systems, 4th Edition, Oxford: Oxford University Press, 2009. Call No. TK5101 L333 2009
- J. G. Proakis and M. Salehi, Communication Systems Engineering, 2nd Edition, Prentice Hall, 2002. ISBN: 0-13-095007-6
- S.S. Haykin, Communication Systems, 4th Edition, John Wiley & Sons, 2001. Call Number: TK5101 H38 2001.
- [J&S] C. R. J. Jr, W. A. Sethares, and A. G. Klein, Software Receiver Design: Build Your Own Digital Communication System in Five Easy Steps, 1st ed. Cambridge University Press, 2011.

- [J&S] C.R. Johnson and W.A. Sethares, Telecommunications Breakdown: Concepts of Communication Transmitted via Software-Defined Radio, Prentice Hall, 2003.

- [C&T] Thomas M. Cover, Joy A. Thomas, Elements of Information Theory, Second Edition, Wiley-Interscience, 2006
- MATLAB Primer, 8th edition T. A. Davis. CRC Press, 2010.
- MIT RES.6.007 Signals and Systems (1987) on Youtube

#### Handouts and Course Material

- Slides: Course Introduction [Posted @ 4PM on Aug 9]
- Full version [Posted @ 2PM on Aug 11]

- Part I: Review
- Section 1 (Intro. to Commu. Systems) [Posted @ 4PM on Aug 9]
- Slides [Posted @ 2PM on Aug 11]

- Section 2 (Frequency-Domain Analysis) [Posted @ 4PM on Aug 9]
- Annotated version [Posted @ 4:30PM on Aug 13; Updated @ 2PM on Aug 18, @ 6PM on Aug 20, @ 1:30PM on Aug 25, and @ 9PM on Aug 27]
- Slides [Posted @ 4:30PM on Aug 13; Updated @ 2PM on Aug 18, @ 6PM on Aug 20, @ 1:30PM on Aug 25, @ 9PM on Aug 27, and @ 1:30PM on Sep 1]
- Selected pages [Distributed in class on Aug 18; Posted @ 2PM on Aug 18; Updated @ 6PM on Aug 20, @ 1:30PM on Aug 25, and @ 1:30PM on Sep 1]

- Section 1 (Intro. to Commu. Systems) [Posted @ 4PM on Aug 9]
- Part II: Continuous-Wave Modulation
- Section 3 (Modulation and Communication Channels) [Distributed in class on Sep 1]
- Annotated version [Posted @ 1:30PM on Sep 1; Updated @ 5PM on Sep 3, @ 12:30PM on Sep 8, and @ 9PM on Sep 10]
- Slides [Posted @ 1:30PM on Sep 1; Updated @ 5PM on Sep 3 and @ 5PM on Sep 28]
- Solution for Quiz 1 [Posted @ 10AM on Sep 14]

- Section 4 (Amplitude/Linear Modulation)
- Section 4.1-4.3 (DSB-SC Modem) [Distributed in class]
- Annotated version [Posted @ 8PM on Sep 15; Updated @ 9:30PM on Sep 17, @ 1PM on Sep 22, @ 3PM on Oct 13, and @ 6PM on Oct 15]

- Section 4.4 (Energy and Power) [Distributed in class on Sep 22]
- Annotated version [Posted @ 1PM on Sep 22; Updated @ 4:30PM on Sep 24]

- Section 4.5 (AM) [Distributed in class on Oct 15 and Oct 20]
- Annotated version [Posted @ 6PM on Oct 15; Updated @ 2PM on Oct 20 and @ 4:30PM on Oct 22]

- Section 4.6 (QAM) [Distributed in class on Oct 20]
- Annotated version [Posted @ 4:30PM on Oct 22; Updated @ 2:30PM on Oct 27 and @ 9PM on Oct 29]
- Quiz 2 Solution

- Section 4.7 (SSB) [Distributed in class on Oct 27]
- Slides [Posted @ 5PM on Sep 24; Updated @ 3PM on Oct 13, @ 6PM on Oct 15, @ 2:30PM on Oct 20, @ 4:30PM on Oct 22, and @ 9PM on Oct 29]

- Section 4.1-4.3 (DSB-SC Modem) [Distributed in class]
- Section 5 (Angle Modulation)
- Section 5.1-5.2 (FM, PM, Instantaneous Frequency) [Distributed in class on Oct 27]
- Annotated version [Posted @ 9PM on Oct 29; Updated @ 1PM on Nov 3 and @ 5PM on Nov 5]
- Quiz 3 solution + m-file

- Section 5.3 (BW of FM)
- Annotated version [Posted @ 5PM on Nov 5; Updated @ 5:30PM on Dec 3]

- Slides [Posted @ 1:30PM on Nov 3; Updated @ 5PM on Nov 5]

- Section 5.1-5.2 (FM, PM, Instantaneous Frequency) [Distributed in class on Oct 27]
- Section 6 (Sampling, Reconstruction, and Pulse Modulation) [Distributed in class on Nov 10 and Nov 17]
- Annotated version [Posted @ 2PM on Nov 11; Updated @ 1PM on Nov 17, @ 10PM on Nov 19, and @1:30PM on Nov 24]
- Slides [Posted @ 2PM on Nov 11; Updated @ 10:30PM on Nov 19 and @1:30PM on Nov 24]
- Quiz 4 Solution

- Section 7
- Annotated version [Posted @ 1:30PM on Nov 24; Updated @ 7:30PM on Nov 26 and @ 2PM on Dec 1]
- Slides [Posted @ 8PM on Nov 26]

- Section 8
- Section 8.1-8.2
- Annotated version [Posted @ 2PM on Dec 1]

- Section 8.3
- Annotated version [Posted @ 2PM on Dec 1; Updated @ 5:30PM on Dec 3]

- Section 8.4 (extra)
- Slides [Posted @ 5:30PM on Dec 3]

- Section 8.1-8.2

- Section 3 (Modulation and Communication Channels) [Distributed in class on Sep 1]

#### Problem Set

- HW 1 (Due: August 27, 12:59 PM (in class))
- HW 2 (Due: September 3, 12:59 PM (in class))
- HW 3 (Due: September 10, 12:59 PM (in class))
- HW 4 (Due: September 22, 10:39 AM (in class))
- For Q3.b, the constant B is just a constant but unfortunately we also have the same letter defined as 3kHz earlier in the question. So, to prevent confusion, we should change the name of the constants A and B, to alpha and beta, respectively.
- For Q5.c, m(t) is not defined; so you may use any m(t) that is band-limited to B. If coming up with an example is not straight-forward, there is already M(f) defined in part (b) that you can try. So, to make the question easier, we rename part (c) to be (b.iii). [Credit: Tiwat]
- Solution

- HW 5 (Not Due)
- Self-evaluation (Due: October 20 (online))
- HW6 (Due: November 3, 10:39 AM (in class))
- HW7 (Due: November 19, 12:59 PM (right before class))
- HW8 (Due: November 26, 12:59 PM (right before class))
- HW9 (Not Due)
- HW10 (Not Due)
- Self-evaluation (2) (Due: December 11 (online))

#### Calendar

#### Reading Assignment

#### Misc. Links

- Paper: B.L. Burrows and D.J. Colwell, The Fourier transform of the unit step function, International Journal of Mathematical Education in Science and Technology, Vol. 21, Iss. 4, 2006

- Article: IEEE 802.11ac—Wi-Fi for the Mobile and Video Generation

- C.E. Shannon
- Paper: C.E. Shannon, "A Mathematical Theory of Communication",
*Bell System Technical Journal*, vol. 27, pp. 379–423, 623-656, July, October, 1948 - Video: Claude Shannon - Father of the Information Age
- The Significance of Shannon's Work by Aaron Wyner

- Paper: C.E. Shannon, "A Mathematical Theory of Communication",
- Paper: Sergio Verdü (2000). "Fifty years of Shannon theory"
- Video: Demo from MIT (1987) showing introduction to function generator, spectrum analyzer (with sampling and FFT), spectrum of square and triangular signals, time and frequency scaling, spectrum of speech, and amplitude modulation.
- Video: Demo of Amplitude Modulation (AM) using MATLAB Simulink.
- Article: The Compact Disc Story gives background information on the many technical decisions made, including the choice of the sampling frequency, playing time, and disc diameter.
- Article: Articles about source coding: PC World article, US Patent 5,533,051, the comp.compression FAQ.
- Article: Jim Giles, Traffic jam: the coming cellphone crunch, New Scientist, November, 2010
- 20 Questions
- Twenty Questions online game
- Twenty Questions (1949): Players were allowed to ask up to twenty questions about a mystery object in their quest to identify it.

- A Brief History of Communications: IEEE Communications Society - a fifty-year foundation for the future
- ประวัติย่อ "การสื่อสารโลก": ห้าสิบปีชมรมไฟฟ้าสื่อสาร--รากฐานสู่อนาคต

- Thai Telecommunications Encyclopedia (สารานุกรม โทรคมนาคมไทย)
- IEEE Thailand Section
- Google Calculator (Cheat Sheet)
- Learn the Greek Alphabet in less than 10 minutes
- The Greek Alphabet Song