MIMO Over-the-Air Computation for Distributed Estimation

MIMO over-the-air computation (MIMO-AirComp) is a recently proposed technique that leverages the superposition property of multiple access channel to compute target multifunction various applications. This article presents how MIMO-AirComp principle can be applied state estimation problem using distributed sensing data. The representative function explicitly formulated as nomographic matched structure with proper processing function. framework efficiently computes by coordinating local preprocessing at each node, aggregation through wireless channel, and postprocessing fusion center. We analyze demonstrate approach significantly improves throughput for application. Specifically, outperforms conventional separated communication when network system relies on noisy measurements obtained densely deployed sensors.