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Analog and Digital Communications Study Plan Overview

Study plan for EE521 course focusing on frequency sweep, noise, sampling, hard and soft decoding, system view examples, and digital signal processing. Get help with study problems and feedback by email.

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Analog and Digital Communications Study Plan Overview

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  1. EE521 Analog and Digital Communications Study Plan James K Beard, Ph.D. jkbeard@temple.edu http://astro.temple.edu/~jkbeard/

  2. The Term Project • Continue with the start that you turned in with the first quiz backup • Input • Frequency sweep 1000 Hz to 3500 Hz • Noise to obtain 20 dB SNR • Sampling to obtain good performance • Do NOT pitch your beginning and pick up the ADC to bitstream modules as a template • Sample and encode/decode as instructed • Measure BER vs. Eb/N0 as instructed • Compare hard decoding with soft decoding Study Plan

  3. Scope of the Study Plan • Suggested extra readings • Scope of the topics • Homework problems • Selected for their study value • Chosen to take about 15 minutes apiece • From the Text • Three to five per chapter • Suggested examples from the text Study Plan

  4. Coverage of the Study Plan • Text, Chapters 2-4, 6-7 • More will be added as they are needed • Extra topics are available • SystemView examples • Modulation/demodulation Study Plan

  5. Feedback and Consultation • Let me know by email whenever you • Are behind in the reading • Have a problem with a study item • Specific issues, please • Good: “I don’t understand Problem 2.1 p. 18” • Good: “I need a little explanation of Example 2.17 pp. 75-76” • Bad: “I don’t understand Chapter 1” • Channels • Email jkbeard@temple.edu • Simple, one-time issues such as Good above • Anything that is between you and I • Office – Topics that require a conversation, not a single answer or response • Phone – NA, no phone in current office; email or visit preferred Study Plan

  6. Study Problems Overview • Look at the slides for each week for supplementary material • Look at your notes • Several are given for each chapter • Pick the easiest first • Some of the longer or more difficult problems are marked as such here – don’t do them first • If you have difficulty with a problem and can’t resolve your problems with the text, put it aside and come back to it later • In the event of difficulty • If an example is given, go through it thoroughly first • Re-read the text sections relating to the problems • Put it aside and come back to it after you work others • If the difficulty persists, send me an email • Emails to the Professor • Use jkbeard@temple.edu • Give the problem number • State your difficulty as specifically as possible Study Plan

  7. Digital input Channel impulse response Digital output Sklar Chapter 1 From other sources Essential Legend: Information source Message symbols Optional Channel symbols X M I T Format Source encode Encrypt Channel encode Multi-plex Pulse modulate Bandpass modulate Freq-uency spread Multiple access Bit stream Synch-ronization Digital baseband waveform Digital bandpass waveform Channel R C V Format Source decode Decrypt Channel decode Demul-tiplex Detect Demod-ulate & Sample Freq-uency despread Multiple access To other destinations Channel symbols Message symbols Information sink Study Plan

  8. Chapter 1 • Review • Digital signal processing • Noise in signals • Energy and power spectral density • Random variables and statistics of signals • Linear systems • Topics are covered in prerequisites • Read for review • Problem 1.1 page 51 • Questions on Chapter 1 OK 8226 8226 Study Plan

  9. Digital input Channel impulse response Digital output Sklar Chapter 2 From other sources Essential Legend: Information source Message symbols Optional Channel symbols X M I T Format Source encode Encrypt Channel encode Multi-plex Pulse modulate Bandpass modulate Freq-uency spread Multiple access Bit stream Synch-ronization Digital baseband waveform Digital bandpass waveform Channel R C V Format Source decode Decrypt Channel decode Demul-tiplex Detect Demod-ulate & Sample Freq-uency despread Multiple access To other destinations Channel symbols Message symbols Information sink Study Plan

  10. Chapter 2 Study Problems • Quadrature demodulation material in first lecture is material that is NOT FOUND IN THE TEXT • Problem 2.2 page 101 • Problem 2.4 page 101 • Problem 2.6 page 102 • Problem 2.7 page 102 • Problem 1.16 page 103 • Look at doing the Chapter 2 exercises in SystemView Study Plan

  11. Digital input Channel impulse response Digital output Sklar Chapter 3 From other sources Essential Legend: Information source Message symbols Optional Channel symbols X M I T Format Source encode Encrypt Channel encode Multi-plex Pulse modulate Bandpass modulate Freq-uency spread Multiple access Bit stream Synch-ronization Digital baseband waveform Digital bandpass waveform Channel R C V Format Source decode Decrypt Channel decode Demul-tiplex De-tect Demod-ulate & Sample Freq-uency despread Multiple access To other destinations Channel symbols Message symbols Information sink Study Plan

  12. Chapter 3 Study Problems • Problem 3.1 page 162 • Problem 3.2 page 162 • Problem 3.3 page 162 • Problem 3.4 page 162 • Problem 3.5 page 162 (more difficult BER problem) • Problem 3.9 page 164 (longer problem) • Problem 3.11 page 164 (related to term projects) Study Plan

  13. Digital input Channel impulse response Digital output Sklar Chapter 4 From other sources Essential Legend: Information source Message symbols Optional Channel symbols X M I T Format Source encode Encrypt Channel encode Multi-plex Pulse modulate Bandpass modulate Fre-quency spread Multiple access Bit stream Synch-ronization Digital baseband waveform Digital bandpass waveform Channel R C V Format Source decode Decrypt Channel decode Demul-tiplex Detect Demod-ulate & Sample Freq-uency despread Multiple access To other destinations Channel symbols Message symbols Information sink Study Plan

  14. Chapter 4 Study Problems • Example 4.1 pp. 187-188 • Example 4.2 pp. 193-194 • Problem 4.1 page 237 • Problem 4.2 page 237 (longer problem) • Problem 4.3 page 237 • Problem 4.4 page 237 (long problem) • Problem 4.11 page 239 (hard problem) • Problem 4.12 page 240 • Question 4.1 page 241 • Question 4.5 page 241 (excellent but longer problem) • Question 4.9 page 241 Study Plan

  15. Chapter 5 Study Problems • Communication link analysis • Skipped in EE521 • Treats • Propagation • Noise • Interference • Fading • See EE320 lectures Study Plan

  16. Digital input Channel impulse response Digital output Sklar Chapters 6 and 7 From other sources Essential Legend: Information source Message symbols Optional Channel symbols X M I T Format Source encode Encrypt Channel encode Multi-plex Pulse modulate Bandpass modulate Freq-uency spread Multiple access Bit stream Synch-ronization Digital baseband waveform Digital bandpass waveform Channel R C V Format Source decode Decrypt Channel decode Demul-tiplex Detect Demod-ulate & Sample Freq-uency despread Multiple access To other destinations Channel symbols Message symbols Information sink Study Plan

  17. Chapter 6 Study Problems • Problem 6.1 page 375 (very long problem) • Problem 6.2 • Problem 6.3 • Problem 6.6 • Problem 6.8 page 376 • Problem 6.16 page 377 • Problem 6.18 (simple if programmed) Study Plan

  18. Chapter 7 Study Problems • Problem 7.1 page 431 • Problem 7.5 page 432 • Problem 7.6 page 432 (uses problem 7.5) • Problem 7.5 page 432 (uses 7.5, 7.6) • Problem 7.11 page 433 • All Questions on page 435 Study Plan

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