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Draw the approximate Analog Modulation waveforms

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Assignment -

Q1. Convert the binary data "011010" into analog waveforms using following modulation techniques:

a. Two level Amplitude Shift Keying

b. Two level Frequency Shift Keying

c. Two level Phase Shift Keying

d. Differential Phase shift keying

e. Four level Amplitude Shift Keying

f. Four level Phase Shift Keying

g. Eight level Amplitude Shift Keying

Q2. With fc = 500 kHz, fd = 25 kHz, and M = 16 (L = 4 bits), compute the frequency assignments for each of the sixteen possible 4-bit data combinations.

Q3. Draw the approximate Analog Modulation and Frequency Modulation waveforms in complete steps for the following signal:

358_figure.png

Q4. Draw the 16 QAM Constellation Diagram having two different amplitude levels and eight different phase levels.

Q5. Explain and draw the Error Detection Process for Cyclic Redundancy Check (CRC).

Q6. Compute the frame check sequence for the following information:

Message = 10111100, Pattern = 11011

Q7. Compute the transmitted signal using Direct Sequence Spread Spectrum for the following information:

Input: 1011, Locally Generated PN bit stream: 101011011010, T = 3Tc

Q8. What is the difference between Infrastructure and ad hoc modes in WLAN? Draw their relative diagrams as well.

Q9. Compare the differences of TCP and OSI protocols for wired and wireless LANs using diagrams.

Q10. Explain why the square and circle shapes cells for cellular communications are not appropriate as compared to hexagonal shape cells.

Verified Expert

This is an assignment about the communication engineering system. Here it is required to define and design a system for two-level and four-level amplitude shift key, phase shift key, and frequency shift key and differential phase shift key mathematically and graphically. steps of analog and frequency modulation. some other questions required the explanation and drawing of 16 QAM Constellation Diagram having two different amplitude levels and eight different phase levels, Error Detection Process for Cyclic Redundancy Check (CRC). then in other question, it is required to compute the frame check sequence for the given information.

Reference no: EM132328415

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