EE620-HW-02-solutions

EE620-HW-02-solution - 1 EE 620 MIMO Wireless Communications Solutions for Homework#2(1 We have two ST signals The spectral efficiency of the set

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Unformatted text preview: 1 EE 620: MIMO Wireless Communications Solutions for Homework #2: (1) We have two ST signals. The spectral efficiency of the set of two ST signals is 2 2 log log 2 0.5 bit/s/Hz 2 L R T = = = (2) Mt=2, Mr=1. At time t , the signal received at receiver is given by 2 1 1 , 1,2 2 t M i i t i t t i t t i i t y hC hC t M ρ ρ η η = = = + = + = ∑ ∑ The system average SNR is { } 2 2 2 2 2 2 t=1 1 t=1 1 2 2 2 2 1 1 2 2 SNR= i i i t i t i i t t t t E hC E hC E E ρ ρ η η = = = = = ∑ ∑ ∑ ∑ ∑ ∑ 2 2 2 2 * * * * ' ' 1 1 1 1 , ' 2 2 2 2 * * ' ' 1 1 , ' 2 2 2 2 2 2 2 i i i i i i t i t i t i i t t i i i i i i i i i t i i t t i i i hC hC h C hh C C h C hh C C ρ ρ ρ ρ ρ ρ = = = ≤ ≤ = ≤ ≤ = = = + ∑ ∑ ∑ ∑ ∑ ∑ { } { } { } { } { } { } { } 2 2 2 2 2 * * ' ' 1 1 1 , ' 2 2 2 2 * * ' ' 1 1 , ' 2 2 2 1 2 2 2 2 2 2 i i i i i t i t i i t t i i i i i i i i t i i t t i i i i t i E hC E h C E hh C C E h E C E h E h E C C...
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This note was uploaded on 02/24/2011 for the course EE 620 taught by Professor Dr.weifengsu during the Spring '11 term at SUNY Buffalo.

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EE620-HW-02-solution - 1 EE 620 MIMO Wireless Communications Solutions for Homework#2(1 We have two ST signals The spectral efficiency of the set

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