关键词: 多入多出-正交频分复用, Wishart 分布, 信道估计误差

Abstract:

The multiple-input multiple-output-orthogonal frequency division multiplexing (MIMO-OFDM) system can be impaired by channels estimation error over double selective (time varying and frequency selective) Rayleigh channels. The performance for MIMO-OFDM systems in presence of channels estimation error is investigated using zero-forcing detectors over double selective Rayleigh channels. Approximation to the distribution of complex Wishart distribution is used to derive probability density function of signal-to-interference-plus-noise ratio, average error probability and outage probability of the system. The analysis is shown good by numerical simulations.
Key words

Key words: multiple-input multiple-output-orthogonal frequency division multiplexing, Wishart distribution, channels estimation error