On the Outage Probability and BER of MRC and EGC Space-Diversity Reception over Ricean Fading with LMMSE Channel Estimation
نویسنده
چکیده
In this paper, the effect of imperfect channel estimation (ICE) on maximal-ratio combining (MRC) and equal-gain combining (EGC) in receive antenna diversity systems with M-level quadrature amplitude modulation (MQAM) are examined. The channel is assumed to be spatiallyindependent frequency-flat with Ricean fading and AWGN. Average BERs and outage probability of MRC and EGC antenna diversity combining schemes are analyzed via Monte-Carlo simulations versus average received bit SNR per antenna and specified outage threshold respectively for various values of Ricean K-factor, number of antennas L and normalized channel estimation correlation coefficient to show the actual diversity gain with these combining schemes under realistic LMMSE-based channel estimation scenarios for pilot-symbol aided modulation (PSAM).
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تاریخ انتشار 2009