Malicious wireless safety message detection using an angle of arrival

A system for determining receipt of a malicious message by a vehicle, the system comprising:

• one or more vehicles, wherein each vehicle comprises:
• a memory;
• and
• one or more processors coupled to the memory, wherein the one or more processors are operable to:
• receive a message;
• determine a message type associated with the message;
• calculate an angle of arrival (AoA) for the message, wherein the AoA is an angle of receipt for the message;
• compare the AoA to a message angle, wherein the message angle is an expected angle of receipt or angle range for the message based on the message type;
• flag the message as being malicious in response to the comparison indicating that the AoA is not equivalent to or within a predetermined tolerance of the message angle;
• and
• suppress a notification or warning associated with the flagged message.

A non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions readable by a processor to cause the processor to perform a method for determining receipt of a malicious message by a vehicle comprising:

• receiving a message;
• determining a message type associated with the message;
• calculating an angle of arrival (AoA) for the message, wherein the AoA is an angle of receipt for the message;
• comparing the AoA to a message angle, wherein the message angle is an expected angle of receipt or angle range for the message based on the message type;
• flagging the message as being malicious in response to the comparison indicating that the AoA is not equivalent to or within a predetermined tolerance of the message angle;
• and
• suppressing a notification or warning associated with the flagged message.