Wireless network multi-path routing network coding transmission method
A technology of network transmission and wireless network, which is applied in the field of wireless communication network, can solve problems such as increasing the number of network transmission times and delay, too fast network performance decline, and multi-node storage space, so as to reduce the pressure of computing and storage, and reduce heavy The effect of hop count and strong network performance
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Embodiment 1
[0076] Embodiment 1: Example of network initialization
[0077] exist figure 2 In the mesh network shown, assuming that there are two source nodes, four relay nodes and two destination nodes, the network initialization steps of the multi-path routing network transmission coding are as follows:
[0078] Step 1, the source node 1 and the source node 2 broadcast and send the initialization packet, at this time, the series flag bit of the initialization packet is 1;
[0079] Step 2, relay node 3 and relay node 4 receive the broadcast from source node 1, relay node 3 and relay node 4 confirm that source node 1 is their neighbor node, and add the series flag bit of the initialization packet to 1. Continue to forward the initialization packet; at this time, the series flag bit of the initialization packet is 2;
[0080] Step 3, relay node 3 and relay node 5 receive the broadcast from source node 2, relay node 3 and relay node 5 confirm that source node 2 is their neighbor node, an...
Embodiment 2
[0088] Embodiment 2: Example of data transmission
[0089] exist figure 2 In the mesh network shown, it is assumed that there are two source nodes, four relay nodes, and two destination nodes. Assuming that the network has been initialized, source node 1 needs to send message A and message B to destination node 7 and destination node 7. Node 8; source node 2 needs to send message P 1 and message P 2 To the sending destination node 7 and destination node 8; because it is a wireless network, each node can not carry out the sending and receiving work at the same time, so the data transmission of its multi-channel routing network transmission code is carried out according to the following steps:
[0090] In the first step, source node 1 broadcasts message A, and relay node 3 and relay node 4 receive message A;
[0091] In the second step, source node 2 broadcasts message P 1 , relay node 3 and relay node 5 receive message P 1 ; At the same time, relay node 4 directly broadca...
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