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A wireless power supply relay network optimization method for non-orthogonal multiple access

A non-orthogonal multiple access and wireless power supply technology, which is applied in wireless communication, network planning, electrical components, etc., can solve the problems of lack of resource allocation flexibility and the improvement of spectrum utilization in the information transmission stage, so as to improve spectrum utilization, The effect of increasing the total transfer rate

Inactive Publication Date: 2019-05-03
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] In the prior art, the information transmission time of each user from the user to the relay is the same as the information transmission time from the relay to the hybrid access point, which lacks the flexibility of resource allocation, and energy harvesting has a certain impact on the transmission rate of individual users. Negative impact of the negative impact, the spectrum utilization in the information transmission stage also needs to be further improved

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  • A wireless power supply relay network optimization method for non-orthogonal multiple access
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  • A wireless power supply relay network optimization method for non-orthogonal multiple access

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0031] Such as figure 1 As shown, the wireless power supply relay network in this embodiment includes a base station, wireless energy transmission and wireless information transmission are performed between the first to the Kth relays and the base station, and correspondingly the first to the Kth users respectively communicate with the corresponding The relay performs wireless information transmission, there is no direct link between the user and the base station, and th...

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Abstract

The invention discloses a wireless power supply relay network optimization method of non-orthogonal multiple access. The method comprises an energy collection stage and an information transmission stage. On the basis of a traditional double-hop wireless power supply relay network system, a user transmits information to relays in a time division multiple access mode, after the information is decoded and forwarded by the relays, all the relays send information to a base station in a non-orthogonal multiple access mode at the same time, the spectrum utilization rate is improved, and meanwhile thetotal transmission rate of the whole network is increased.

Description

technical field [0001] The invention relates to a non-orthogonal multiple access wireless power supply relay network optimization method, which belongs to the field of wireless energy transmission. Background technique [0002] With the rapid development of the Internet of Things, the rapidly growing communication requirements lead to rapid energy consumption, which seriously restricts the transmission performance and service life of the Internet of Things based on energy-constrained sensors. However, traditional grid charging and battery replacement are difficult to achieve in some specific sensor network scenarios, such as large-scale sensor networks, embedded devices, and remote area networks. Therefore, an effective energy supply mechanism is urgently needed to provide continuous energy supply for the energy-constrained transmission network. In recent years, the concept of green communication has attracted the attention of a wide range of experts and scholars, which mai...

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Application Information

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IPC IPC(8): H04W40/22H04W24/08H04W72/04H04W16/14
Inventor 谢天怡杨震吕斌
Owner NANJING UNIV OF POSTS & TELECOMM
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