Energy efficiency cooperative multicast routing method for multi-hop wireless network
A technology of multi-hop wireless network and cooperative group, which is applied in the field of energy-efficient cooperative multicast routing, and can solve the problems of low energy efficiency and high energy consumption of multi-hop wireless multicast network.
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[0107] There are Q nodes in the multi-hop wireless network, and Q is set to 30, 40, 50, 60 and 70 respectively. All nodes are randomly distributed in a square area of 15km x 15km. The present invention assumes that the link fading factor α=2, the destination node is from 1 to h, wherein h is much smaller than Q and h is at most 5, that is, there is at most one destination node. The present invention assumes that the received power is a constant value, and the threshold of the signal-to-noise ratio is set to 1. The relevant variable parameters are the network size and the random setting of the destination nodes. The flowchart of the unicast routing method is as follows: Figure 7 As shown, the specific steps are as follows:
[0108] Step 1: Use the MIP algorithm to establish all communication paths with minimum energy consumption between the source node and all destination nodes, that is, to construct a minimum energy consumption multicast tree, such as Figure 8 shown. ...
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