Derive the bit error rate (BER) expressions for PSK and FSK under addi

Back to the 2024 paper

Module 2: Digital Modulation

20247m

Derive the bit error rate (BER) expressions for PSK and FSK under additive white Gaussian noise (AWGN).

Worked SolutionAI Assisted

Answer

AWGN BER: BPSK coherent $P_e=Q(\sqrt{2E_b/N_0})$ , distance $2\sqrt{E_b}$ . BFSK orthogonal $P_e=Q(\sqrt{E_b/N_0})$ , non-coherent $0.5e^{-E_b/2N_0}$ . BPSK 3dB better than FSK. Derivation threshold 0 decision.

Similar questions

Principles of Communication Engineering 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 Principles of Communication Engineering BER stands for (i) Binary error range (ii) Bit energy ratio (iii) Bit error rate (iv) Bandwidth efficiency rate20252m Principles of Communication Engineering Discuss the impact of white noise in amplitude modulation systems and derive the signal-to-noise ratio (SNR).20247m Principles of Communication Engineering Explain the working principle of Phase Shift Keying (PSK) and its advantages over Amplitude Shift Keying (ASK).20247m

PreviousDiscuss the impact of white noise in amplitude modulation systems and derive the signal-to-noise ratio (SNR).NextIf an AM transmitter operates at 1000 kHz carrier frequency with a total power of 10 kW and modulation index of 0.8, determine the power in the carrier and sidebands.

Student FinanceWeb Platform

Pocketly — Personal Finance for Students

Keep your hostel and college expenses under control. Track accounts, log spending in seconds, and stay within your monthly budget.

Open Pocketly