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Full duplex cognitive relay power distribution method based on energy collection

A cognitive relay and energy harvesting technology, which is applied in power management, electrical components, wireless communication, etc., can solve problems such as inapplicability, achieve the effect of maximizing, realizing throughput, and solving energy constraints

Active Publication Date: 2020-10-16
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing technologies are only suitable for cognitive networks in half-duplex mode, and are not suitable for scenarios with high QoS performance requirements such as delay and throughput.

Method used

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  • Full duplex cognitive relay power distribution method based on energy collection
  • Full duplex cognitive relay power distribution method based on energy collection
  • Full duplex cognitive relay power distribution method based on energy collection

Examples

Experimental program
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Embodiment

[0031] In this embodiment, a cognitive wireless network is simulated to implement the energy harvesting-based full-duplex cognitive relay power allocation method of the present invention, such as figure 1 As shown, the cognitive wireless network system includes a pair of primary user transceivers, a pair of secondary user transceivers and an energy-constrained full-duplex cognitive relay node R. In this cognitive wireless network, the primary user transceiver The user, the secondary user transceiver, and the full-duplex cognitive relay use single-antenna equipment or multi-antenna equipment, and both the primary user transceiver and the secondary user transceiver use the underlay spectrum access mode for network spectrum access; Within T, the primary user transmitting terminal PU_Tx transmits a signal to the primary user receiving terminal PU_Rx, and at the same time, the secondary user transmitting terminal PU_Tx transmits a signal to the secondary user receiving terminal SU_R...

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Abstract

The invention discloses a full duplex cognitive relay power distribution method based on energy collection. According to the method, a cognitive relay node performs power distribution on signals received from signals transmitted by a primary user and signals transmitted by a secondary user according to a distribution coefficient [rho], energy resources in a wireless radio frequency environment arefully reutilized while spectrum resource sharing is realized, and the problem that the energy of the relay node is limited is solved. According to the method, a primary user transceiver and a secondary user transceiver adopt an underlay spectrum access mode to perform network spectrum access, and primary and secondary users share a frequency band at the same time. According to the method, energycollection of the relay node is optimized, maximization of the throughput of the cognitive network can be achieved, the relay node adopts a full duplex communication mode, and the method is suitable for occasions with high requirements for the network throughput and time delay, such as the Internet of Vehicles in the current 5G environment.

Description

Technical field: [0001] The invention relates to a full-duplex cognitive relay power distribution method based on energy collection, which belongs to the field of wireless network communication. Background technique: [0002] With the rapid development of social economy and emerging technologies, the demand for wireless communication services has increased sharply, and higher requirements have been put forward for wireless communication. The number of portable wireless communication devices powered by batteries has increased sharply, the shortage of wireless spectrum resources and the limited energy of portable devices. It has become an important factor restricting wireless communication. It is particularly important to solve the problem of energy supply for portable devices while improving the spectrum utilization of wireless relay networks. [0003] In recent years, energy harvesting technology, which converts radio frequency signal energy into device energy, has become a...

Claims

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Application Information

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IPC IPC(8): H04W16/14H04W52/24H04W52/46H04W72/04
CPCH04W16/14H04W52/241H04W52/243H04W52/46H04W72/0473Y02D30/70
Inventor 张士兵韩刘可张美娟吴建绒
Owner NANTONG UNIVERSITY
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