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Wireless energy harvesting network selection cooperative transmission method based on ARQ

A technology of cooperative transmission and network selection, applied in transmission systems, wireless communications, digital transmission systems, etc., can solve the problems of underutilization of available channels and failure to consider battery energy accumulation, and achieve easy implementation, increase transmission power, The effect of improving reliability

Active Publication Date: 2019-11-19
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The accumulation of battery energy is not considered in the traditional selection cooperative communication system, and most of them rely on the best relay-destination node channel quality to select the best relay, and do not make full use of all available channels

Method used

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  • Wireless energy harvesting network selection cooperative transmission method based on ARQ
  • Wireless energy harvesting network selection cooperative transmission method based on ARQ
  • Wireless energy harvesting network selection cooperative transmission method based on ARQ

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Embodiment Construction

[0049] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0050] see Figure 1 ~ Figure 4 , the embodiment of the present invention relates to an ARQ-based wireless power supply selection cooperation system, the sys...

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Abstract

The invention relates to a wireless energy harvesting network selection cooperative transmission method based on ARQ, and belongs to the technical field of wireless communication. The wireless energyharvesting network selection cooperative transmission method is characterized in that a plurality of relay nodes which support radio frequency energy collection and are provided with rechargeable batteries are arranged between a source node and a destination node; the source node sends information to the destination node in a multi-round ARQ mode, and the relay node tries to decode the informationand carries out charging by using radio frequency energy at the same time; if the destination node fails to receive, the relay node selects the optimal relay node through distributed competition to assist in forwarding; in the forwarding process, the relay nodes which are not decoded successfully continue to try to decode; and if the forwarding is unsuccessful, entering the next round. Accordingto the invention, during each round of ARQ transmission, the source node wirelessly supplies power to the relay node to increase the transmitting power of the relay node, and the relay-relay channel is fully utilized to increase the optimal relay selection range, and the system transmission reliability is effectively improved while the energy is saved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to an automatic repeat request (ARQ)-based wireless energy collection network selection cooperation method. Background technique [0002] Cooperative communication technology means that in a multi-user communication environment, nodes using a single antenna can share each other's antennas and cooperate to send their own information, thereby generating a virtual antenna array similar to multi-antenna transmission to obtain space diversity gain. The selective cooperation technology is applied in the multi-relay node scenario. Compared with the method in which multiple relays participate in cooperative transmission, the selective cooperation selects an optimal relay transmission information from multiple relays, which greatly reduces the complexity of the system. Spend. [0003] In some wireless communication systems, such as wireless sensor networks, nodes are faced with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/22H04L1/16H04L1/18H02J50/20
CPCH04W40/22H04L1/1607H04L1/1806H02J50/20Y02D30/70
Inventor 王恒谭秋妮李敏
Owner CHONGQING UNIV OF POSTS & TELECOMM
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