CN113301530A - Method for improving vehicle networking trust based on road side unit - Google Patents
Method for improving vehicle networking trust based on road side unit Download PDFInfo
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- CN113301530A CN113301530A CN202110375396.8A CN202110375396A CN113301530A CN 113301530 A CN113301530 A CN 113301530A CN 202110375396 A CN202110375396 A CN 202110375396A CN 113301530 A CN113301530 A CN 113301530A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/009—Security arrangements; Authentication; Protecting privacy or anonymity specially adapted for networks, e.g. wireless sensor networks, ad-hoc networks, RFID networks or cloud networks
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Abstract
The invention discloses a method for improving vehicle networking trust based on a road side unit, belonging to the technical field of vehicle networking and comprising the following steps: s1: deployment of RSU; s2: a forwarding policy of the route; s3: sending and receiving strategies of data; s4: a trust value update policy; according to the invention, the trust value of the vehicle is updated in real time by the road side unit, and whether the message generated by the vehicle is forwarded or not is judged according to the latest trust value of the vehicle in the driving process of the vehicle, so that the problems of traffic jam and the like caused by the fact that a malicious vehicle intentionally sends a malicious message which does not conform to the real traffic environment are avoided, the trust relationship between the vehicle and the internet of vehicles can be improved, and the reliability of the message generated by the vehicle in the internet of vehicles and the message transmission process is ensured.
Description
Technical Field
The invention belongs to the technical field of vehicle networking, and particularly relates to a method for improving vehicle networking trust based on a road side unit.
Background
After the reform is opened, with the rapid development of economy in China, the number of automobiles is rapidly increased, the amplification speed of the automobiles is far higher than the speed of traffic infrastructure construction, great pressure is brought to traffic, and the social attention problem can be effectively solved by using the Internet of vehicles as one of the most core contents of intelligent traffic.
The vehicle-road communication is an important communication mode in the vehicle networking and becomes an important method for solving the problem of the traffic communication system at present, an electronic system of the vehicle is responsible for controlling information of the vehicle and sensing and feeding back surrounding environment, and the road side unit has the main functions that the current road traffic condition can be acquired in real time through information interaction with the road side unit in the driving process of the vehicle, the vehicle information is published, the vehicle is communicated with an external network as an intermediary, and the like, so that the vehicle-mounted ad hoc network has higher communication efficiency as a whole.
In the car networking environment, some malicious vehicles may intentionally send malicious messages which do not conform to the real traffic environment, and the malicious messages sent by the malicious vehicles may cause serious consequences, such as traffic congestion and the like, and even threaten life safety, so that in order to improve the trust of the car networking to the vehicles and ensure the reliability of messages generated by the vehicles in the car networking and in the message transmission process, a method for improving the car networking trust based on a road side unit needs to be established.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a method for improving the trust of a vehicle networking based on a road side unit, which has the characteristics of improving the trust relationship between vehicles and the vehicle networking and ensuring the reliability of messages generated by the vehicles in the vehicle networking and the reliability of the message transmission process.
In order to achieve the purpose, the invention provides the following technical scheme: a method for improving vehicle networking trust based on a road side unit comprises the following steps:
s1: deployment of RSUs
S11: dividing an actual map into a plurality of areas, arranging RSUs on key road sections of a vehicle entering and exiting the areas, and allocating an initial trust value gamma to the vehicle by the RSUs according to the previous performance of the vehicle in other environments1；
S12: the limited RSUs are uniformly arranged in the whole environment to serve as necessary equipment for updating the vehicle trust value;
s2: routing forwarding strategy
S21: if the number of nodes in the environment is sufficient and there is a trust value of nodes higher than the criterion gamma0Set the next hop addressThe node with the highest trust value in the current communication range is obtained;
s22: if the number of nodes in the environment is sufficient, but there is no trust value higher than the criterion gamma0The vehicle does not forward the messages of other nodes;
s23: if the number of the nodes in the environment is scarce, the vehicle can receive the existing data packet in the environment, but only stores the data packet and does not forward the data packet;
s3: data transmission and reception strategy
S31: if the number of nodes in the environment is sufficient, the vehicle receives and transmits data normally;
s32: if the nodes in the environment are scarce, the vehicle can not broadcast any data and only receives and records the data;
s4: trust value update policy
S41: when a vehicle enters a region with scarce RSU, the RSU allocates an initial trust value gamma to the vehicle according to the previous performance of the vehicle in other environments1；
S42: when the vehicle passes through the RSU, reporting the credibility of the received data to the RSU;
s43: the vehicle transfers the data packet intercepted in the sparse environment to the RSU, and the vehicle sending or transmitting the data packet can reduce the credibility to gamma when passing through the RSU0The following;
s44: when the vehicle passes through the RSU, if no adverse behavior record exists in the RSU, the trust value of the vehicle automatically rises (1-gamma)n) /10, wherein γnIs the existing trust value of the current vehicle;
s45: when the vehicle leaves the region where the RSU is scarce, the RSU gives reward or penalty according to the previous performance of the vehicle in the environment, and the new trust value is
Further, in the present invention, in step S11,
wherein, γmIs the initial confidence value, gamma, in the just-entered zone of the vehicle0Is the trust standard value of the region.
Further, in the present invention, in step S42, considering that the contact time with the RSU is short, only the error information is reported, and the correct information is not reported.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the trust value of the vehicle is updated in real time by the road side unit, and whether the message generated by the vehicle is forwarded or not is judged according to the latest trust value of the vehicle in the driving process of the vehicle, so that the problems of traffic jam and the like caused by the fact that a malicious vehicle intentionally sends a malicious message which does not conform to the real traffic environment are avoided, the trust relationship between the vehicle and the internet of vehicles can be improved, and the reliability of the message generated by the vehicle in the internet of vehicles and the message transmission process is ensured.
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FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides the following technical solutions: a method for improving vehicle networking trust based on a road side unit comprises the following steps:
s1: deployment of RSUs
S11: dividing an actual map into a plurality of areas, arranging RSUs on key road sections of a vehicle entering and exiting the areas, and allocating an initial trust value gamma to the vehicle by the RSUs according to the previous performance of the vehicle in other environments1；
S12: the limited RSUs are uniformly arranged in the whole environment to serve as necessary equipment for updating the vehicle trust value;
s2: routing forwarding strategy
S21: if the number of nodes in the environment is sufficient and there is a trust value of nodes higher than the criterion gamma0Setting the next hop address as the node with the highest trust value in the current communication range;
s22: if the number of nodes in the environment is sufficient, but there is no trust value higher than the criterion gamma0The vehicle does not forward the messages of other nodes;
s23: if the number of the nodes in the environment is scarce, the vehicle can receive the existing data packet in the environment, but only stores the data packet and does not forward the data packet;
s3: data transmission and reception strategy
S31: if the number of nodes in the environment is sufficient, the vehicle receives and transmits data normally;
s32: if the nodes in the environment are scarce, the vehicle can not broadcast any data and only receives and records the data;
s4: trust value update policy
S41: when a vehicle enters a region with scarce RSU, the RSU allocates an initial trust value gamma to the vehicle according to the previous performance of the vehicle in other environments1；
S42: when the vehicle passes through the RSU, reporting the credibility of the received data to the RSU;
s43: the vehicle transfers the data packet intercepted in the sparse environment to the RSU, and the vehicle sending or transmitting the data packet can reduce the credibility to gamma when passing through the RSU0The following;
s44: when the vehicle passes through the RSU, if no adverse behavior record exists in the RSU, the trust value of the vehicle automatically rises (1-gamma)n) /10, wherein γnIs the existing trust value of the current vehicle;
s45: when the vehicle leaves the region where the RSU is scarce, the RSU gives reward or penalty according to the previous performance of the vehicle in the environment, and the new trust value is
Specifically, in step S11,
wherein, γmIs the initial confidence value, gamma, in the just-entered zone of the vehicle0Is the trust standard value of the region.
Specifically, in step S42, considering that the contact time with the RSU is short, only the error information is reported, and the correct information is not reported.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A method for improving vehicle networking trust based on a road side unit is characterized by comprising the following steps:
s1: deployment of RSUs
S11: dividing an actual map into a plurality of areas, arranging RSUs on key road sections of a vehicle entering and exiting the areas, and allocating an initial trust value gamma to the vehicle by the RSUs according to the previous performance of the vehicle in other environments1；
S12: the limited RSUs are uniformly arranged in the whole environment to serve as necessary equipment for updating the vehicle trust value;
s2: routing forwarding strategy
S21: if the number of nodes in the environment is sufficient and there is a trust value of nodes higher than the criterion gamma0Setting the next hop address as the node with the highest trust value in the current communication range;
s22: if the number of nodes in the environment is sufficient, but there is no trust value higher than the criterion gamma0The vehicle does not forward the messages of other nodes;
s23: if the number of the nodes in the environment is scarce, the vehicle can receive the existing data packet in the environment, but only stores the data packet and does not forward the data packet;
s3: data transmission and reception strategy
S31: if the number of nodes in the environment is sufficient, the vehicle receives and transmits data normally;
s32: if the nodes in the environment are scarce, the vehicle can not broadcast any data and only receives and records the data;
s4: trust value update policy
S41: when a vehicle enters a region with scarce RSU, the RSU allocates an initial trust value gamma to the vehicle according to the previous performance of the vehicle in other environments1；
S42: when the vehicle passes through the RSU, reporting the credibility of the received data to the RSU;
s43: the vehicle transfers the data packet intercepted in the sparse environment to the RSU, and the vehicle sending or transmitting the data packet can reduce the credibility to gamma when passing through the RSU0The following;
s44: when the vehicle passes through the RSU, if no adverse behavior record exists in the RSU, the trust value of the vehicle automatically rises (1-gamma)n) /10, wherein γnIs the existing trust value of the current vehicle;
s45: when the vehicle leaves the region where the RSU is scarce, the RSU gives reward or penalty according to the previous performance of the vehicle in the environment, and the new trust value is
2. The method for improving vehicle networking trust based on the road side unit of claim 1, wherein: in the step S11, in the above step,
wherein, γmIs the initial confidence value, gamma, in the just-entered zone of the vehicle0Is the trust standard value of the region.
3. The method for improving vehicle networking trust based on the road side unit of claim 1, wherein: in step S42, considering that the contact time with the RSU is short, only the error information is reported, and the correct information is not reported.
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| CN202110375396.8A CN113301530A (en) | 2021-04-08 | 2021-04-08 | Method for improving vehicle networking trust based on road side unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115116213A (en) * | 2022-05-20 | 2022-09-27 | 华南理工大学 | Internet of vehicles trust management method based on improved fully-connected neural network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115116213A (en) * | 2022-05-20 | 2022-09-27 | 华南理工大学 | Internet of vehicles trust management method based on improved fully-connected neural network |
| CN115116213B (en) * | 2022-05-20 | 2023-08-22 | 华南理工大学 | Internet of vehicles trust management method based on improved fully-connected neural network |
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