Principle of Communications
Fall 2018
Principle of Communications is the first course to communication systems for undergraduate students, and it aims to uncover how a communication system works and the underlying beautiful theoretical principles. It builds the foundations for students to explore more advanced topics related to communications, ranging from theoretical development to practical implementation, such as wireless communications, wireless networks, Internet of Things, etc. Lectures are developed to answer the following key question:
How to reliably deliver information over an unreliable physical medium?
Towards answering this question, we begin with the interface between the cyber and the physical world and explain how to convert from digital to analog and vice versa. Next, we introduce a first statistical model, the additive noise channel, that captures the unreliable feature of physical medium, and develop the principle for optimal reconstruction based on statistical decision theory. Then, we introduce the key concept of coding in order to achieve reliable communication, together with a concrete example: convolutional code. These principles are extended to further channel models, namely, wireline (telephone) channel and wireless channel, where additional challenges such as inter-symbol interference (ISI) and fading need to be tackled. OFDM is introduced to alleviate ISI while diversity techniques are developed to mitigate fading.
News
- [09.17]
Please visit NTU COOL for announcements and timely update of lecture materials. This site will be used as backup.
- [08.01]
Welcome!
Logistics
- Instructor:
I-Hsiang Wang
(王奕翔),
ihwang AT ntu DOT edu DOT tw
- Office Location and Office Hours:
MD-524 (明達館524室), Time: Monday and Tuesday, 17:30 - 18:30.
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Lecture Room and Lecture Hours:
MD-231 (明達館231室), Time: Thursday 09:10 – 12:10.
- Teaching Assistant:
Chen-Hao Hsiao (蕭晨豪)
Email: r07942062 AT ntu DOT edu DOT tw
Office hours: Wednesday, 19:00 - 20:00, BL-524 (博理館524室)
Course Information
- References:
- R. G. Gallager, Principles of Digital Communication, Cambridge University Press, 2008.
- U. Madhow, Fundamentals of Digital Communication, Cambridge University Press, 2008.
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Prerequisites:
Linear algebra, Probability, Signals and Systems.
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Grading:
Homework (40%), Midterm (30%), Final (30%).
Lecture Materials
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Lecture 0 Logistics and Course Information
Slide
updated 09.12
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Lecture 1 Introduction
Note
updated 09.12
Slide
updated 09.12
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Lecture 2 Digital Modulation
Note
updated 09.17
Slide
updated 09.17
Homeworks
Exam
Resources