Question: QPSK is used to transmit data through a channel that adds Gaussian noise with power spectral density N 0 = 10 -11 V 2 /

QPSK is used to transmit data through a channel that adds Gaussian noise with power spectral density N₀ = 10^-11 V² / Hz. What are the values of the quadrature modulated carrier amplitudes required to give P_{E, symbol} = 10^-4 for the following data rates?

(a) 5 kbps
(b) 10 kbps
(c) 50 kbps
(d) 100 kbps
(e) 0.5 Mbps
(f) 1 Mbps

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