摘要:
A system and method is provided for dynamically self-allocating channel access for communication between communicating entities in an inter-vehicle ad hoc network. A respective entity observes communication activity over each inter-vehicle ad hoc network communication channel. Available time slots are identified within each communication channel for the respective entity to broadcast a data packet in response to the observed communication activity on a respective channel. An available communication channel and timeslot are selected to broadcast the data packet. A message is broadcast within the inter-vehicle ad hoc network that provides a schedule identifying the communication channel and time slot selected for broadcasting the data packet by the respective entity. The data packet is broadcast over the selected communication channel at the respective timeslot.
摘要:
A method for determining which of a plurality of data connectivity pipes will be used to transmit data for one or more applications operating on a vehicle. The method identifies which of the applications are active at a particular point in time and identifies a number of available configurations based on the number of applications that are active and the number of the data pipes that are available to transmit the data for the application. The method identifies a plurality of performance metrics for each configuration and determines an optimal performance value for each performance metric from all of the configurations. The method then determines an overall utility function for each configuration that is based on its performance metrics and the optimal performance value and selects a data pipe for each application that is active based on a maximum overall utility function from each application's available overall utility functions.
摘要:
A system and method is provided for dynamically self-allocating channel access for communication between communicating entities in an inter-vehicle ad hoc network. A respective entity observes communication activity over each inter-vehicle ad hoc network communication channel. Available time slots are identified within each communication channel for the respective entity to broadcast a data packet in response to the observed communication activity on a respective channel. An available communication channel and timeslot are selected to broadcast the data packet. A message is broadcast within the inter-vehicle ad hoc network that provides a schedule identifying the communication channel and time slot selected for broadcasting the data packet by the respective entity. The data packet is broadcast over the selected communication channel at the respective timeslot.
摘要:
A system and method for providing geo-service advertising messages using a wireless vehicle-to-infrastructure (V2X) communications network. Messages are transmitted from a business that identify the type of business, the name of the business and the location of the business, which are received by vehicles traveling within a certain distance of the business. The messages can be rebroadcast by the vehicles receiving the messages from the business to other vehicles either in a multi-hop information routing manner or in a delay-tolerant network information dissemination fashion so that the messages are sent to a wider area, but within a predetermined geographic area and with a predetermined time. If a particular user of the system wishes to learn about a particular business or type of business, he can activate the system so that the messages being sent between the vehicles and from the businesses can be displayed to the user for his use.
摘要:
A method for providing messages indicating potential hazardous road conditions using a wireless communications network. Vehicles using the network include sensors that are able to detect various potentially hazardous road conditions, such as rain, fog, icy road conditions, traffic congestion, etc. A plurality of vehicles that detect a specific road condition provide a confidence value that the condition exists. The confidence value is then aggregated by the vehicles with the confidence value of the detected condition from the other vehicles to provide an aggregated result that identifies the probability that the detected road condition is occurring. The aggregated result is then transmitted to other vehicles approaching the road condition, possibly in a multi-hop manner. Alternately, the confidence value from all of the vehicles that detect the condition can be transmitted to approaching vehicles who will provide the aggregated result identifying the potential that the condition exists.
摘要:
A method is provided for efficiently transferring records related to places of interest between two communicating vehicles in a V2V system without initially having to transfer full text records. A determination is made as to whether information stored in a memory of the vehicle is redundant with the respect to the other vehicle. A query request is transmitted from a first vehicle to a second vehicle containing specifics as to what records the first vehicle is seeking. Data satisfying the query request represented by global unique index numbers is hashed to determine the similarity between the data of the two communicating vehicles. The similarity is used to determine whether a full filtered set of global unique index numbers should be transferred to the second vehicle for determining which records are not duplicate records. Thereafter, the second vehicle wirelessly transmits to the first vehicle the non-overlapping data that satisfies the query request.
摘要:
A multimedia content dissemination system is provided for mobile vehicles. A wireless vehicle communication network provides communication among mobile vehicles in the network. At least one host vehicle within the wireless vehicle communication network is selected by an authorized entity for disseminating multimedia content received by the authorized entity. The at least one host vehicle transmits an inquiry to target vehicles in the wireless vehicle communication network. The inquiry comprises a content profile that includes descriptors associated with the multimedia content for allowing target vehicles to determine whether an interest exists in the multimedia content. The at least one host vehicle transmits the multimedia content in encrypted form to an interested target vehicle for sampling the multimedia content. The interested target vehicle requests ongoing use of the multimedia content from the authorized entity in response to sampling the multimedia content. The authorized entity provides to the interested target vehicle a decryption key for authorizing ongoing use of the multimedia content.
摘要:
A system for intelligent dissemination of messages via long-range communications to select delegate vehicles, and short-range communications from the delegate vehicles. The system includes a processor and a memory storing a delegation and dissemination algorithm that, when executed by the processor, causes the processor to define a dissemination area and define multiple delegation zones within the dissemination area. The algorithm also causes the processor to identify at least one delegate vehicle, of a network of vehicles, for each delegation zone and seed a message into the network of vehicles by transmitting the message to each delegate vehicle via long-range communications so that the delegate vehicles can transmit the message throughout the network of vehicles via short-range communications.
摘要:
A multimedia content dissemination system is provided for mobile vehicles. A wireless vehicle communication network provides communication among mobile vehicles in the network. At least one host vehicle within the wireless vehicle communication network is selected by an authorized entity for disseminating multimedia content received by the authorized entity. The at least one host vehicle transmits an inquiry to target vehicles in the wireless vehicle communication network. The inquiry comprises a content profile that includes descriptors associated with the multimedia content for allowing target vehicles to determine whether an interest exists in the multimedia content. The at least one host vehicle transmits the multimedia content in encrypted form to an interested target vehicle for sampling the multimedia content. The interested target vehicle requests ongoing use of the multimedia content from the authorized entity in response to sampling the multimedia content. The authorized entity provides to the interested target vehicle a decryption key for authorizing ongoing use of the multimedia content.
摘要:
A system and method for wirelessly exchanging information concerning the location of E85 gas stations between E85 vehicles. The method includes transmitting messages from an E85 gas station that identifies the location of the E85 gas station, the time of the transmission and the price of the E85 gas, and receiving the messages by E85 vehicles that pass within a certain distance of the E85 gas station. The method also includes identifying that two E85 vehicles pass close to each other, where the vehicles periodically broadcast an E85 beacon identifying them as E85 vehicles. When two E85 vehicles are identified, the vehicles exchange information concerning a list of the E85 gas stations that they have stored from messages received from E85 gas stations and/or other E85 vehicles. The two vehicles update their lists to include those E85 gas stations that one vehicle may have that the other does not.