Controller for controlling a wireless network to perform radiofrequency-based motion detection

The invention provides a controller, system, method, and computer program product for controlling a wireless network to perform radiofrequency-based motion detection. Thereto, the invention provides a controller for controlling a wireless network comprising a plurality of nodes to perform radiofrequency-based motion detection, wherein each unique pair of the plurality of nodes forms a respective node pair and collectively results in a plurality of node pairs, wherein the controller is configured to: select a reference node pair from the plurality of node pairs; obtain at least one reference characteristic of the reference node pair; select a subset of node pairs from the plurality of node pairs, wherein each respective node pair in the subset of node pairs comprises a respective characteristic matching the at least one reference characteristic; perform the radiofrequency-based motion detection with said subset of node pairs.