Wireless energy supply multi-hop communication system node selection method

Abstract

The invention discloses a wireless energy supply multi-hop communication system node selection method, which comprises the following steps that: at a signal source S, all nodes collect energy firstly,then select the nodes and transmit information, and select a node SS with the maximum collected energy from the signal source S to send the information; at the relay R, if information needs to be forwarded, energy is collected from an environment radio frequency source for work, and then a node is selected as relay forwarding information, and the relay adopts a DF mode, and a node RS with the maximum collected energy is selected from all nodes with correct decoding in the relay R to forward the information to a receiving end; at a receiving end D, node receiving information with the maximum received signal to interference plus noise ratio is selected; and meanwhile, same-frequency interference signals existing in the system are considered, and the interference signals are modeled into a Poisson point process, and interference of nodes in the same cluster is used as a related event, and interference between different clusters is used as an independent event. A node selection scheme isprovided for the wireless energy supply multi-hop system, so that the system performance is improved, and the system outage probability is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless energy supply communication, and in particular relates to a node selection method of a wireless energy supply multi-hop communication system. Background technique [0002] In energy-constrained networks, wireless power supply communication technology is a promising technology to solve the power problem of the system. In particular, it is unrealistic to replace or charge batteries one by one in a large-scale network, and it is difficult to manually replace batteries in toxic environments and some human implanted devices or devices installed in buildings. Using wireless charging to charge the device can well avoid the above-mentioned problems. Based on the requirements of higher transmission rate, wider coverage and low power consumption in wireless communication networks, the research on multi-hop systems has become very important. Using the multi-hop system can improve system performance and co...

AI Technical Summary

Problems solved by technology

To maintain the life of the network, recharge or replace the battery frequently, but in some scenarios, it becomes impractical to replace the battery or recharge, such as in large-scale networks, underground pipelines, and toxic environments. to battery replacement and charging

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