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Top2. Characterization Of Mimo-Ofdm Signals
The mathematical model of the
-th transmitted MIMO-OFDM signal
can be written as
(1) with

denoting the frequency of its first sub-carrier and

denoting the complex envelope of the

-th transmitted MIMO-OFDM signal, given by
(2) where

is the complex symbol transmitted in the antenna

, subcarrier

on the

-th time interval,

is the number of OFDM sub-carriers,

is the length of the OFDM symbol,

and

are random variables modeling the phase of the oscillator and the error of synchronization respectively,

denote the modulation shaping pulse and

denote the duration of the cyclic prefix of the OFDM signal. The random variables

and

are considered statistically independent and uniformly distributed on

and

respectively.