Title :
Accurate Closed-Form Approximation of BER for OSTBCs with Estimated CSI on Spatially Correlated Rayleigh Fading MIMO Channels
Author :
Jacobs, Lucas ; Moeneclaey, Marc
Author_Institution :
Dept. of Telecommun. & Inf. Process., Ghent Univ., Ghent, Belgium
Abstract :
In this contribution, we present a novel accurate closed-form approximation for the bit error rate (BER) of orthogonal space-time block codes (OSTBCs) employing quadrature amplitude modulation with Gray-mapping on spatially correlated Rayleigh fading MIMO channels, in the presence of channel estimation errors. The presented BER expression allows to accurately examine the impact of spatial correlation and channel estimation errors on the BER for any OSTBC or signal-to-noise ratio, even in case of highly correlated channels.
Keywords :
Gray codes; MIMO communication; Rayleigh channels; approximation theory; channel estimation; correlation methods; error statistics; orthogonal codes; quadrature amplitude modulation; space-time block codes; BER; CSI estimation; Gray-mapping; OSTBC; bit error rate; channel estimation error; closed-form approximation; orthogonal space-time block code; quadrature amplitude modulation; signal-to-noise ratio; spatially correlated Rayleigh fading MIMO channel; Approximation methods; Bit error rate; Channel estimation; Covariance matrix; Rayleigh channels; Signal to noise ratio; Error analysis; OSTBC; Rayleigh fading; channel estimation; correlated MIMO channels;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.012313.122751
