A Simulation Method of On-Star Router for Delay Tolerant Network
A simulation method and network-tolerant technology, applied in satellite network technology and computer field, can solve problems such as long simulation period
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[0066] The technical solution of the present invention will be described in detail below with reference to the drawings and embodiments.
[0067] Step 1: Modeling and simulation of on-board routers based on OPNET.
[0068] (1) Node domain modeling.
[0069] The job of the node domain is to define the internal structure of the node. In OPNET, such as figure 1 The protocol architecture shown. An additional Bundle layer is added between the transport layer and the application layer. The transport layer adaptively selects the SCPS-TP or UDP protocol, and the link layer uses the IP OVER CCSDS AOS architecture. In space communication, there is generally no need to consider the complex situation of application layer gateways.
[0070] In the node model, the blocks that are connected to each other to form the node model become modules. Each module contains a set of inputs and outputs, state memory, and functions that calculate output based on the inputs and state memory. The input and outp...
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