Title :
Decision fusion in MIMO wireless sensor networks with channel state information
Author :
Ciuonzo, Domenico ; Romano, Gianmarco ; Rossi, Pierluigi Salvo
Author_Institution :
Dept. of Inf. Eng., Second Univ. of Naples, Naples, Italy
Abstract :
We study channel-aware binary decision fusion over a Rayleigh flat fading shared channel with multiple antennas at the Decision Fusion Center (DFC). We derive the optimum and three sub-optimal fusion rules, namely the Max-Log, the Chair-Varshney - Maximum Likelihood and the Maximum Ratio Combining rules. Simulation results for the performance are presented in terms of Probability of Detection (under a fixed false alarm rate) vs SNR and number of antennas. The effect of multiple antennas at the DFC for the presented rules is analyzed, showing benefits and limitations of the choice.
Keywords :
MIMO communication; Rayleigh channels; antenna arrays; maximum likelihood estimation; probability; wireless channels; wireless sensor networks; Chair-Varshney-maximum likelihood rule; DFC; MIMO wireless sensor networks; Rayleigh flat fading shared channel; SNR; channel state information; channel-aware binary decision fusion; decision fusion center; detection probability; max-log rules; maximum ratio combining rules; multiple antennas; suboptimal fusion rules; Antennas; Approximation methods; Fading; MIMO; Signal to noise ratio; Vectors; Wireless sensor networks;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012 IEEE 7th
Conference_Location :
Hoboken, NJ
Print_ISBN :
978-1-4673-1070-3
DOI :
10.1109/SAM.2012.6250568
