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Massive MIMO based Distributed Detection in Multi-Antenna Sensor Networks

The research on the Massive MIMO distributed detection system is mainly focused on the scenario where the sensing terminal is equipped with a single antenna. However, with the development of technology and the increasing demand for communication, it is a normal state for sensor nodes to be equipped with multiple antennas. Therefore, we propose a distributed detection scheme, in which a large antenna is installed on the base station, and the terminal assumes multi-antenna sensor. Through random matrix theory and maximum likelihood test, we derive the closed-form expressions of detection probability and false alarm probability. Besides, we verified the uplink transmission rate of multi-antenna sensors through simulation, and the large-scale antenna can improve the distributed detection efficiency. The multi-antenna sensor has better transmission performance than the single-antenna sensor.