Principles of Communication Engineering
117404Module 2: Digital Modulation
Q1e. BER stands for (i) Binary error range (ii) Bit energy ratio (iii) Bit error rate (iv) Bandwidth efficiency rate20252m
Module 2: Digital Modulation
View this question on its own page →BER stands for
(i) Binary error range
(ii) Bit energy ratio
(iii) Bit error rate
(iv) Bandwidth efficiency rateQ1h. A QPSK signal consists of how many distinct phase states? (i) 2 (ii) 4 (iii) 8 (iv) 1620242m
Module 2: Digital Modulation
View this question on its own page →A QPSK signal consists of how many distinct phase states?
(i) 2
(ii) 4
(iii) 8
(iv) 16Q1j. What is the primary factor that determines the Bit Error Rate (BER) in a communication system? (i) Power spectral density (ii) Bandwidth efficiency (iii) Signal-to-noise ratio (SNR) (iv) Carrier frequency20242m
Module 2: Digital Modulation
View this question on its own page →What is the primary factor that determines the Bit Error Rate (BER) in a communication system?
(i) Power spectral density
(ii) Bandwidth efficiency
(iii) Signal-to-noise ratio (SNR)
(iv) Carrier frequencyQ2a. Explain the working principle of Phase Shift Keying (PSK) and its advantages over Amplitude Shift Keying (ASK).20247m
Module 2: Digital Modulation
View this question on its own page →Explain the working principle of Phase Shift Keying (PSK) and its advantages over Amplitude Shift Keying (ASK).
Q3a. Derive the bit error rate (BER) expressions for PSK and FSK under additive white Gaussian noise (AWGN).20247m
Module 2: Digital Modulation
View this question on its own page →Derive the bit error rate (BER) expressions for PSK and FSK under additive white Gaussian noise (AWGN).
Q4a. Explain the fundamentals of a digital communication system with a neat block diagram.20257m
Module 2: Digital Modulation
View this question on its own page →Explain the fundamentals of a digital communication system with a neat block diagram.
Q4b. Compare analog and digital communication systems.20257m
Module 2: Digital Modulation
View this question on its own page →Compare analog and digital communication systems.
Q5a. Describe the basic nomenclature used in digital communication.20257m
Module 2: Digital Modulation
View this question on its own page →Describe the basic nomenclature used in digital communication.
Q5b. Define power spectral density and bandwidth efficiency. Explain their importance in digital modulation.20257m
Module 2: Digital Modulation
View this question on its own page →Define power spectral density and bandwidth efficiency. Explain their importance in digital modulation.