A LEAN V2X SECURITY PROCESSING STRATEGY USING KINEMATICS INFORMATION OF VEHICLES
First Claim
1. A method of selectively verifying and processing messages within a vehicle-to-vehicle communication system, the method comprising the steps of:
- (a) a host vehicle receiving a message in the vehicle-to-vehicle communication system from a remote vehicle;
(b) evaluating a time-to-collision status between the host vehicle and the remote vehicle sending the message, the time-to-collision status being a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the respective remote vehicle;
(c) assigning an attentive factor to the remote vehicle based on the time-to-collision status, the attentive factor for a remote vehicle identifying a proportion of messages broadcast from the remote vehicle to be targeted for security processing;
(d) performing security processing of the message using a second portion of the message unless the attentive factor indicates the message should be ignored; and
(e) returning to step (a) for each subsequent message.
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Abstract
A vehicle-to-vehicle communication filtering system is provided to selectively process broadcast messages between a host vehicle and a remote vehicle. A processing unit evaluates a time-to-collision status between the host vehicle and the remote vehicle sending the message. The time-to-collision status is a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the remote vehicle. An attentive factor is assigned to each of the remote vehicles based on the time-to-collision with respect to each remote vehicle. The attentive factor identifies a proportion of messages broadcast from the remote vehicle to be targeted for security processing. Security processing of the message is performed based on a second portion of the message unless the attentive factor indicates the message should be ignored.
209 Citations
20 Claims
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1. A method of selectively verifying and processing messages within a vehicle-to-vehicle communication system, the method comprising the steps of:
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(a) a host vehicle receiving a message in the vehicle-to-vehicle communication system from a remote vehicle; (b) evaluating a time-to-collision status between the host vehicle and the remote vehicle sending the message, the time-to-collision status being a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the respective remote vehicle; (c) assigning an attentive factor to the remote vehicle based on the time-to-collision status, the attentive factor for a remote vehicle identifying a proportion of messages broadcast from the remote vehicle to be targeted for security processing; (d) performing security processing of the message using a second portion of the message unless the attentive factor indicates the message should be ignored; and (e) returning to step (a) for each subsequent message. - View Dependent Claims (6)
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- 2. The method of claim 2 wherein the host vehicle maintains recorded data in a memory, the recorded data obtained from the first portion of the broadcast messages for determining the attentive factor of each remote vehicle.
- 3. The method of claim 3 wherein the recorded data includes a vehicle identification for identifying each remote vehicle in communication with the host vehicle, a determined distance between the host vehicle and each remote vehicle, and a relative velocity between the host vehicle and each remote vehicle.
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13. A vehicle-to-vehicle communication filtering system for selectively processing broadcast messages between a host vehicle and a remote vehicle, the system comprising:
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a processing unit for processing messages broadcast from a remote vehicle; a communication device for wirelessly broadcasting and receiving wireless messages; a GPS device for identifying a global position of the host vehicle; wherein the processing unit evaluates a time-to-collision status between the host vehicle and the remote vehicle sending the message, the time-to-collision status being a function of a relative distance and a relative velocity between the host vehicle and the remote vehicle which are determined from data provided within a first portion of the message received from the remote vehicle, wherein an attentive factor is assigned to each of the remote vehicles based on the time-to-collision with respect to each remote vehicle, the attentive factor for a remote vehicle identifying a proportion of messages broadcast from the remote vehicle to be targeted for security processing, wherein security processing of the message is performed based on a second portion of the message unless the attentive factor indicates the message should be ignored.
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- 14. The system of claim 14 further comprising a memory for maintaining recorded data for determining the attentive factor of each remote vehicle.
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19. The system of claim 19 wherein the attentive factor identifies a time interval of broadcast messages that are disregarded prior to a respective broadcast message being processed
Specification