A Joint Resource Allocation Method for Cognitive Relay Wireless Sensor Networks

A wireless sensor and cognitive relay technology, applied in wireless communication, network topology, power management, etc., can solve the problems of unoptimized power split ratio, power and subcarrier allocation, etc., and achieve the effect of improving system performance
CN110519848BActive Publication Date: 2022-03-15SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2022-03-15

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Abstract

A joint resource allocation method for a cognitive relay wireless sensor network belongs to the technical field of wireless communication. In the cognitive relay wireless sensor network based on SWIPT, the sensor subsystem collects energy from the main user signal, and at the same time, it helps to forward the main user signal in exchange for the right to use part of the licensed spectrum to transmit its own signal. The resource allocation method not only jointly optimizes the power split ratio, transmission power allocation and subcarrier allocation of sensor nodes to maximize the throughput of the sensor subsystem, but also takes into account the target rate requirements of the main system. Its advantage is that it can maximize the throughput of the sensor subsystem by rationally utilizing the energy collected by the sensor nodes and rationally deploying sub-carriers, thereby improving system performance.
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Description

technical field

[0001] The invention relates to a joint resource allocation method for a cognitive relay wireless sensor network, specifically a SWIPT-based joint resource allocation method for a cognitive relay wireless sensor network, and belongs to the technical field of wireless communication. Background technique

[0002] With the advent of the 5G era, wireless sensor networks (WSNs) have broad application prospects in the Internet of Things and other fields due to their low power consumption, low cost, and self-organization. Usually, traditional wireless sensor networks work in the ISM (Industrial, Scientific, and Medical) frequency band, which is becoming more and more crowded due to the rapid development of wireless devices and services.

[0003] By introducing cognitive radio (CR) technology into wireless sensor networks, constructing a cognitive wireless sensor network (CRSN) helps to solve the above-mentioned spectrum shortage problem. In cognitive wireless senso...

Claims

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