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Capacity maximization transmission method oriented to user fairness in wireless energy-carrying two-way relay network

A capacity-maximizing, two-way relay technology, applied in network traffic/resource management, wireless communication, electrical components, etc., can solve problems such as unresolved transmission signal time, and achieve the effect of maximizing fair capacity utility

Active Publication Date: 2019-01-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

At present, the research has not solved how to divide the signal power sent by the two user nodes and adjust the transmission rate of the two users to achieve the fairness requirements of different transmission rates when the distance between the two user nodes and the relay is different, and the transmission time of different nodes is different. System capacity maximization problem

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  • Capacity maximization transmission method oriented to user fairness in wireless energy-carrying two-way relay network
  • Capacity maximization transmission method oriented to user fairness in wireless energy-carrying two-way relay network
  • Capacity maximization transmission method oriented to user fairness in wireless energy-carrying two-way relay network

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Embodiment Construction

[0049] The present invention will be further explained below in conjunction with the drawings.

[0050] In order to solve the problem of how to divide the signal power sent by the two user nodes and adjust the transmission rate of the two users to achieve the fairness requirements of different transmission rates when the distances from the two user nodes to the relay and the transmission time of different nodes are different in the prior art To maximize the system capacity problem, the present invention proposes a transmission method for maximum user fairness in a wireless energy-carrying two-way relay network.

[0051] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] This embodiment is established as figure 2 In the signal transmission model shown, the signal transmission model includes a user node S, a user node D, and a relay node R, and the relay node R is a passive node.

[0053] figure 1 Show...

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Abstract

The invention provides a capacity maximization transmission method oriented to user fairness in a wireless energy-carrying two-way relay network. The method comprises that the complete information transmission of a system is divided into first, second and third transmission phases, wherein the time proportions occupied by respective phases are [delta]1, [delta]2, and [delta]3 respectively; in thefirst transmission phase, a user node S sends a signal to a relay node R; in the second transmission phase, a user node D sends a signal to the relay node R; in the third transmission phase, a relay divides the each of the signals received from the two user nodes into two parts according to a ratio, one part of each signal enters an energy capture unit, and the other part of each signal enters a decoding unit; and the transmission rates of the S and D are adjusted by an optimized power division proportion and adaptation. The method can adapt to different fairness requirements, channel gain conditions and transmission time proportions to achieve fairness capacity utility maximization. Compared with the equal-proportion power division and the transmission rates of the S and D, the method cansignificantly improve the fairness capacity utility.

Description

Technical field [0001] The invention relates to the communication field of wireless energy-carrying two-way relay networks, in particular to a capacity maximization transmission method oriented to user fairness in a wireless energy-carrying two-way relay network. Background technique [0002] In practical application scenarios, it is often necessary to exchange information between nodes. As a simple and easy to implement information exchange technology, two-way relay has very important research value. In two-way relay transmission, the relay decodes, amplifies, and compresses the obtained source-sink node information, and then forwards the information to the source and sink nodes. Related research results show that the decoding type two-way relay has the advantages of easy operation and lower implementation complexity than the compressed fronthaul type; at the same time, compared to the amplifying type relay which consumes additional energy due to the amplification of the noise, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/22H04W52/26H04W52/46H02J50/00
CPCH02J50/00H04W28/22H04W52/267H04W52/46
Inventor 戚楠吴启晖陈佳馨王正刘钢
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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