Bit Error Probability and Capacity Analysis of Space-Time Block Codes in Spatially Correlated MIMO Weibull Fading Channels

摘要

In this paper we examine the effects of spatial fading correlation on bit-error probability (BEP) and channel capacity of orthogonal space-time block codes (STBCs) over multiple-input multiple-output (MIMO) Weibull fading channel. We derive the characteristic function (cf) of the signal-to-noise ratio (SNR) which is linear combination of Laplace transforms weighted by the eigenvalues of the channel correlation matrix, with each component corresponds to an underlying Gamma probability density function (pdf). By efficient use of this method the close-form BEP and capacity expressions are derived for STBC with M-ary phase shift keying and M-ary quadrature amplitude modulation (M-PSK, M-QAM) over Weibull fading channels in the presence of spatial fading correlation.