Schur Complement Based Analysis of MIMO Zero-Forcing for Rician Fading
Schur Complement Based Analysis of MIMO Zero-Forcing for Rician Fading
For multiple-input/multiple-output (MIMO) spatial multiplexing with zero-forcing detection (ZF), signal-to-noise ratio (SNR) analysis for Rician fading involves the cumbersome noncentral-Wishart distribution (NCWD) of the transmit sample-correlation (Gramian) matrix. An <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">approximation</i> with a <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">virtual</i> CWD previously yielded for the ZF SNR an approximate (virtual) Gamma distribution. However, …