摘要:
An ad-hoc wireless network with a roadside network unit (RSU) and a local peer group (LPG). The LPG is formed from a plurality of moving vehicles. The LPG includes a group header node (GH) for managing the LPG. The GH is elected from one of the moving vehicles. The LPG further includes group nodes (GN) designated from the remaining moving vehicles in a given area. Each of the moving vehicles, whether the GH or the GN, communicates with other using routing paths created based upon a first control packet broadcast from the GH and a second control packet broadcast from each of the GN. Each moving vehicle communicates with the RSU using a routing paths created based upon a beacon broadcast by the RSU and a reply signal from each of the moving vehicles. The RSU can also be a member of the LPG and act as GN or GH.
摘要:
A method for organizing and maintaining an ad-hoc network for communication between a plurality of moving devices is disclosed. The method comprises the steps of grouping the plurality of moving devices into at least one local peer group (LPG), ordering the plurality of devices within each LPG based upon a relative position of each of the plurality of devices within each LPG and assigning a unique identifier for each of the plurality of moving devices, where the unique identifier is based, in part on the LPG that the corresponding moving device is located.
摘要:
The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
摘要:
The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
摘要:
The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
摘要:
The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
摘要:
A method and apparatus for optimizing communication of data within a disruption tolerant network. The method comprises of receiving a data packet, said data packet including a context and a state related to said context, storing the data packet to a buffer and disseminating the data packet to neighboring vehicles and RSU, and passing said state to an application, said application associated with said application context. In one embodiment, the method functions as a software protocol within a dashboard computer. The apparatus comprises a processor and a memory operable to receive a data packet, said data packet including a context and a state related to said context, store the data packet to a buffer when the context matches an application context, disseminating the data packet to neighboring vehicles and RSU, and pass said state to an application when the context matches an application context, said application associated with said application context. In one embodiment, the apparatus is presented as a dashboard computer within a vehicle.
摘要:
Establishing and maintaining a moving ad-hoc network is provided. The ad-hoc network includes a plurality of equivalent cells communicationally linked together to form a linked equivalent cell network. An equivalent cell header manages each equivalent cell. Additionally, regular nodes, scattered throughout the equivalent cell network, may be provided. Regular nodes have restricted communication privileges compared to the equivalent cell headers. However, equivalent cell headers can be demoted to regular nodes and regular nodes can be promoted to equivalent cell headers as required by equivalent cell network.
摘要:
Establishing and maintaining a moving ad-hoc network is provided. The ad-hoc network includes a plurality of equivalent cells communicationally linked together to form a linked equivalent cell network. An equivalent cell header manages each equivalent cell. Additionally, regular nodes, scattered throughout the equivalent cell network, may be provided. Regular nodes have restricted communication privileges compared to the equivalent cell headers. However, equivalent cell headers can be demoted to regular nodes and regular nodes can be promoted to equivalent cell headers as required by equivalent cell network.
摘要:
A method for distributing a packet to a plurality of moving nodes comprising receiving a packet containing at least a message, a sender identifier, a location of a sender, an identifier for a relay node and distance from the sender and the relay node, determining if a node receiving the packet is the relay node and immediately distributing the packet to a plurality of moving nodes if the receiving node is the relay node. If the receiving node is not the relay node, the method further comprises steps of waiting a set period of time, determining if a packet is received from a different sender containing the same message, within the period of time and distributing the packet to a plurality of moving nodes if a packet containing the same message is not received within the period of time. The distributed packet includes an identifier for a successive relay node.