Consider a (4,4) MIMO channel with i.i.d. Rayleigh fading. The received signal i

Question

Consider a (4,4) MIMO channel with i.i.d. Rayleigh fading. The received signal is
x = Hs + n, where the elements of the 4 x 4 channel matrix H are i.i.d. zero-mean
complex Gaussian random variables with unit variance. The average received power
is E(II s II2)= P, and the additive noise term n is a zero-mean AWGN vector with covariance E(nnH)= 2I4. Using a total transmit power of 100 milliwatts, the re-sulting received SNR is -10dB (P/2 = 0:1). Evaluate the ergodic open-loop capacity COL(4; 4; 0:1).

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