Massive MIMO meets decision fusion: Decode-and-fuse vs. decode-then-fuse

Domenico Ciuonzo, Pierluigi Salvo Rossi, Subhrakanti Dey
2014 2014 IEEE 8th Sensor Array and Multichannel Signal Processing Workshop (SAM)  
We study channel-aware decision fusion over a multiple-input multiple-output (MIMO) channel in the largearray regime at the decision-fusion center (DFC). Inhomogeneous large-scale fading between the sensors and the DFC is consider in addition to the small-scale fading, and pilot-based channel estimation is performed at the DFC. Linear processing techniques are analyzed in order to design low-complexity alternatives to the optimum log-likelihood ratio test (LLRT). Performance evaluation based on
more » ... evaluation based on Monte Carlo simulations are presented.
doi:10.1109/sam.2014.6882391 dblp:conf/ieeesam/CiuonzoRD14 fatcat:vqtq5szwdbftnoxcvukc3qqpkq