Cross-layer Opportunistic Routing Method for Internet of Vehicles Based on Distributed Congestion Control Strategy
A congestion control and distributed technology, applied in the field of Internet of Vehicles communication, can solve the problem of low reliability, infinite delay of hidden nodes and intermittent V2I connectivity, unfavorable update of status information of relay vehicle nodes and destination vehicle nodes, and random security information Avoid problems such as backoff waiting to achieve the effect of overcoming congestion problems and poor real-time information, improving the receiving rate and delivery rate of routing messages, and improving the delivery rate of routing messages
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[0025] The implementation examples of the present invention will be described in detail below in conjunction with the accompanying drawings, but the implementation and protection of the present invention are not limited thereto.
[0026] refer to figure 1 In this example, the implementation steps of the cross-layer opportunistic routing method for Internet of Vehicles based on the distributed congestion control strategy are as follows:
[0027] Step 1, design of polymorphic distributed congestion control state machine.
[0028] refer to figure 2 , the polymorphic distributed congestion control state machine has eight states (s), which are sequentially recorded as Relaxed("0"), Active("1"), Active("2"), Active("3"), Active( "4"), Active ("5"), Active ("6"), and Restrictive ("7"), the state values are 0 to 7, each state is related to the transmission power TxPower (TPC), the transmission data rate TxDataRate ( TDC) and receiving sensitivity CST (DSC) are set, the larger th...
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