Identification of robust wireless routing paths

A control system node for routing packets between a terminal device and the control system node via intermediate nodes on wireless paths in a wireless network, the control system node comprising processing circuitry, the processing circuitry being configured to cause the control system node to:

• obtain information on disturbances of wireless paths used for communicating packets of a traffic flow between the intermediate nodes in the wireless network, wherein the disturbances are caused by a non-stationary object;
• determine, based on the information on disturbances, mutual correlation between the disturbances of the wireless paths;
• use the determined mutual correlation to determine which of the intermediate nodes the packets of the traffic flow should be routed;
• and
• route the packets of the traffic flow between the terminal device and the control system node via some of the intermediate nodes and along disjoint wireless paths, whereby the same packets are simultaneously transmitted in parallel on the disjoint wireless paths having mutual correlation not higher than a threshold correlation value;
• wherein the threshold correlation value corresponds to the wireless paths having an uncorrelated probability of simultaneous packet loss.

A computer program product comprising a computer program for routing packets between a terminal device and a control system node via intermediate nodes on wireless paths in a wireless network, the computer program comprising computer code which, when run on processing circuitry of the control system node, causes the control system node to:

• obtain information on disturbances of wireless paths used for communicating packets of a traffic flow between the intermediate nodes in the wireless network, wherein the disturbances are caused by a non-stationary object;
• determine, based on the information on disturbances, mutual correlation between the disturbances of the wireless paths;
• use the determined mutual correlation to determine which of the intermediate nodes the packets of the traffic flow should be routed;
• and
• route the packets of the traffic flow between the terminal device and the control system node via some of the intermediate nodes and along disjoint wireless paths, whereby the same packets are simultaneously transmitted in parallel on the disjoint wireless paths having mutual correlation not higher than a threshold correlation value, and wherein the threshold correlation value corresponds to the wireless paths having an uncorrelated probability of simultaneous packet loss, and
• a non-transitory computer readable storage medium on which the computer program is stored.