Principles of Communications

Principles of Communications - Communication Systems...

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1 Communication Systems Semester A, 2008/2009 Chapter 1 Introduction
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2 Contacts and Notes Professor Ping Li Telephone: 2788 9574 Office: G6417 Email: [email protected] Mr Xiaojun Yuan (tutor) Telephone: 2194 2434 Email: [email protected] Mr Chongbin Xu (tutor) Telephone: 2194 2056 Email: [email protected] Important note: EE3008 has two co-rerequisites: EE3118 Linear systems and Signal Analysis Linear system and Fourier transform are covered concurrently in EE3008 and its co- rerequisites. If you are not taking or have not taken EE3210 or EE3118 (or their equivalents), you should drop EE3008 immediately.
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3 Textbook Communication Systems Analysis and Design by H. Stern and S. Mahmoud Pearson Prentice Hall 2004 Available at the bookstore and reserved in the library. This textbook is an excellent reference for your study. Purchasing a textbook is highly recommended.
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4 Example 1: A Satellite System Transmission power is a serious problem in this case (e.g., US$ 1 000 000 for every 1dB of power). Transmission speed is also a serious problem. How can be make the best trade of between power and speed ?
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5 Example 2: A Computer Network Here the main challenge is transmission speed and reliability. How can we deliver millions of bits per second without error? How to improve reliability. Using more power? What is the limitation of the cable or fiber?
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6 Example 3: A Cellular System up-link down-link How can we support more users? Will users affect each other if they are talking simultaneously? How can we resolve such interference? What happens if they are moving?
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Principles of Communications - Communication Systems...

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