MIMO signal processing problem, how can I understand E[s*s']=I(unity matrix) ?
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right now I am trying to simulate a scenario of MIMO: the base station transmitter has M antennas, and its beam former matrix V is M x d, its transmit signal s is d x 1 vector, then
(1) if s is assumed to be satisfied with E[s*s']=I(E is expectation), what does that stand for? can I say s is a unity signal and there is Irrelevance among different elements? but how can I generate such a signal that satisfy the assumption? (2) in the paper the author assumes the column of beam former matrix is d, so can I choose the value of d randomly? is there any material of relative knowledge of MIMO which I can read firstly?
thank you so much in advance for the answer and explanation!
Answers (1)
Jie
on 23 Dec 2014
0 votes
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