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Wireless energy-carrying communication method based on orthogonal frequency division multiplexing amplification and forwarding two-way cooperation

A wireless energy-carrying communication, amplification and forwarding technology, applied in the direction of duplex signal operation, time distribution, payload distribution, etc., to achieve the effect of reducing design complexity

Active Publication Date: 2019-03-29
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0003] In view of the defect that the relay node in the existing amplification and forwarding two-way cooperative wireless energy-carrying communication method needs to add an additional distributor, the present invention provides a two-way cooperative amplification and forwarding based on orthogonal frequency division multiplexing that effectively reduces the design complexity of the relay node. wireless energy-carrying communication method

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  • Wireless energy-carrying communication method based on orthogonal frequency division multiplexing amplification and forwarding two-way cooperation
  • Wireless energy-carrying communication method based on orthogonal frequency division multiplexing amplification and forwarding two-way cooperation
  • Wireless energy-carrying communication method based on orthogonal frequency division multiplexing amplification and forwarding two-way cooperation

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings.

[0043] refer to Figure 1 ~ Figure 3 , a wireless energy-carrying communication method based on orthogonal frequency division multiplexing amplification and forwarding two-way cooperation, which is realized based on an existing wireless communication system, and the wireless energy-carrying communication system consists of a source node S 1 , S 2 and relay nodes R, S 1 → R link and S 2 → The entire bandwidth of the R link is divided into K subcarriers, and the transmission time is divided into two equal time slots.

[0044] In this embodiment, in the first time slot, the source node S 1 and S 2 Send information to the relay node R, the relay node uses a part of the subcarriers to receive the signal, and uses the rest of the subcarriers to collect energy; in the second time slot, the relay node uses the collected energy to perform subcarrier pairing, and then ampli...

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Abstract

The invention discloses a wireless energy-carrying communication method based on orthogonal frequency division multiplexing amplification and forwarding two-way cooperation. In the wireless energy-carrying communication method based on the orthogonal frequency division multiplexing amplification and forwarding two-way cooperation, a source node sends information to a relay node, and the relay nodereceives information by using a part of subcarriers, and collects energy by using the remaining subcarriers; the relay node uses all the energy collected by the relay node to amplify and forward theinformation of the source node after performing subcarrier pairing; and the relay node only needs to know which subcarriers are used for information reception and which subcarriers are used for energyreception; that is, a distributor is not required to be added as long as the relay node knows the subcarrier number used for information reception and energy reception. The wireless energy-carrying communication method based on the orthogonal frequency division multiplexing amplification and forwarding two-way cooperation effectively reduces the design complexity of a device and improves the energy efficiency of a wireless communication system.

Description

technical field [0001] The invention belongs to the technical field of wireless energy-carrying communication in the field of wireless communication, and is a wireless energy-carrying communication technology under two-way transmission. Background technique [0002] Wireless energy-carrying communication technology is a combination of energy harvesting technology and wireless communication technology, which can effectively improve the information rate and energy efficiency of wireless communication systems. Wireless energy-carrying communication technology receives radio frequency signals and collects energy while receiving information, which not only realizes efficient and reliable information communication, but also makes full use of precious energy resources. Cooperative relay technology helps to forward information through relay nodes, which can effectively extend the communication transmission distance and improve the stability of the wireless communication system. The...

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Application Information

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IPC IPC(8): H04B17/382H04B17/391H04B17/40H04L5/00H04L5/14
CPCH04L5/0044H04L5/0064H04L5/0078H04L5/14H04B17/382H04B17/391H04B17/40
Inventor 卢为党赵伟琳斯沛远方善祯彭宏张昱
Owner ZHEJIANG UNIV OF TECH
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