## 3 Implementation Strategy of Dynamic Routing Protocol for Awareness Combat Networks
### Node Status Routing
#### 3.1.2 \"Peak\" State of the Awareness Combat Network  
When the nodes of the awareness combat network transmit data packets of voice and target aiming information, they first use a small transmission power to communicate. The state of the nodes at this time is called the \"peak\" state in this paper. Although the \"peak\" state of the awareness combat network must also consider the dynamics of the topology, the most important thing is to consider the stability of the link and ensure the real-time transmission of information. Even if the enemy target information without timeliness is passed to the fire control system, it is useless. Therefore, the network model of the \"peak\" state is no longer consistent with the DTN network model, but the real-time requirements are added on the basis of the DTN network model. Obviously, allowing interruption and ensuring real-time performance is a contradiction. Although this article cannot completely resolve this contradiction, it can try to use a series of technical means to weaken the degree of contradiction. Under the condition that the data transmission rate is constant, if the link's stable duration is much higher than the round trip time (RTT) of the data packet, that is to say the change of the network topology is slow relative to the transmission of the data packet, the link can be considered static during a data packet transmission. The speed at which the network topology changes is quantitatively described by the frequency \(f_{r}\) of link disconnections on a path. Let \(c_{B}\) the number of disconnections within time RTT, then\"  
\[f_{r}=\frac{c_{B}}{\text{RTT}} \tag{1}\]  
In the \"flat\" state of the awareness combat network, the value of \(f_{r}\) is pretty large; while in the \"peak\" state of the awareness combat network, \(f_{r}\ll 1\). In practical applications, some nodes in the awareness combat network are in the \"flat\" state, while some nodes are in the \"peak\" state. The \"flat\" state guarantees the stable operation of the network. In the case of frequent connections and disconnections between nodes, network routing can converge as quickly as possible. Nodes switch between \"flat\" and \"peak\" states depending on the information type of packets they process. If the node processes data packets with strong real-time information such as enemy target information provided for the fire control system and satisfies the minimum stability coefficient, it is in the \"peak\" state; otherwise it is in the \"flat\" state. The awareness combat network establishes a target aiming-fire strike data link through \"peak\" state nodes. Because of the high-speed movement of the nodes, the network topology changes frequently. This will directly result in unavailability of the selected path and consequently cause a high packet loss rate. Predicting the movement of the vehicle can reduce the impact of network fragmentation. In the process of data transmission, each node used on the path monitors its connectivity to its previous node and the next node and predicts its connection duration to its next node in order to establish a space-time routing table. If the predicted connection time is too short, it will look for another path that can last long enough, and transmit data on the newly established path. If no new path is found nearby, it will send a message to the source  
Packets with real-time information are only transmitted between nodes in the \"peak\" state, spreading just like sea waves. The sensor aims and locks the target, and the aiming position and image after aiming are transmitted in real time. The relative position of the sensor platform to the firepower platform is calculated in real time. The above-mentioned aiming position and relative position are added on the fire platform to obtain the aiming position of the fire platform. The image is not processed except for real-time transmission. Targeting information packets also have the instant speed of the target \(v_{0}\) and its accelerated speed \(a\).