Data transmission method of routing protocol for vehicular ad hoc network based on receiving end
A data transmission method and a vehicle-mounted ad hoc network technology are applied in the data transmission field of the vehicle-mounted ad hoc network routing protocol, and can solve the problems of high probability of signal failure, low routing efficiency, and large delay.
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specific Embodiment approach 1
[0045] The data transmission method based on the VAN routing protocol of the receiving end in this embodiment is based on the data transmission method of the VAN routing protocol at the receiving end. The routing protocol takes the receiving end as the core; under the routing protocol, using cognitive Radio technology uses spectrum sensing to enable nodes within the coverage of the primary user to have the opportunity to transmit the data packets to be transmitted in the network to the target node through a single or multiple hops through the channel in the idle state. The method is realized through the following steps:
[0046] Step 1. Establish a VANET motion network model; the vehicle nodes in the VANET motion network model are all equipped with wireless communication equipment, and they exist in a hybrid network structure, so each vehicle is both As a data node, it is also a routing node for other nodes;
[0047] Step 2, the receiving node i receives the broadcast preambl...
specific Embodiment approach 2
[0062] The difference from Embodiment 1 is that in the data transmission method based on the routing protocol of the VAN at the receiving end in this embodiment, during the receiving node i described in step 4 receiving the preamble information sent by the sending end, the receiving node i adopts The preamble information is listened to in the way of low-power interception.
specific Embodiment approach 3
[0064] The difference from Embodiment 1 or Embodiment 2 is that in this embodiment, the data transmission method based on the routing protocol of the VAN at the receiving end adopts the routing protocol of the receiving end feedback time, that is, Class A routing, for the transmission of delay-sensitive data packets. protocol.
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