Resource Allocation Strategy of SWIPT Relay Under General Interference

The interference often results in a low rate of the wireless relay systems. The recent research on radio frequency signal energy harvesting makes it possible to utilize the interference energy. Based on the widely applicable time switching relay operation strategy and decode-and-forward (DF) relay m...

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Bibliographic Details
Published in:Wireless personal communications 2020-06, Vol.112 (3), p.1719-1733
Main Authors: Li, Jianxiong, Zhao, Ke, Ding, Xuelong, Shi, Weiguang
Format: Article
Language:English
Subjects:
Communications Engineering
Computer Communication Networks
Computer simulation
Coordinates
Energy harvesting
Engineering
Interference
Interruption
Networks
Optimization
Power transfer
Radio signals
Relay systems
Resource allocation
Signal,Image and Speech Processing
Strategy
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Summary:The interference often results in a low rate of the wireless relay systems. The recent research on radio frequency signal energy harvesting makes it possible to utilize the interference energy. Based on the widely applicable time switching relay operation strategy and decode-and-forward (DF) relay modes, this paper studies the resource allocation strategy of the simultaneous wireless information and power transfer relay system under the general interference. The h 2 method is proposed for resource allocation. It establishes a resource allocation coordinate system, and divides the energy harvesting area and the DF area by using the h 2 method. Through derivation, the relationship between the non-interruption probability of the system and the line h 2 is found. Aiming at maximizing the non-interruption probability, the golden splitting method is used to solve the optimal value. The numerical simulation results demonstrate that the h 2 method can effectively improve the non-interruption probability of the system.
ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-020-07124-5