Design method of asymmetric power segregation ratio in two-way relay network with energy
A technology of two-way relay and design method, applied in electrical components, wireless communication, etc., can solve the problems of increasing the total interruption capacity of signal transmission, unable to adjust the power separation ratio of channel statistical characteristics, etc., to achieve the effect of reliable communication
Active Publication Date: 2019-03-22
ZHEJIANG WELLSUN INTELLIGENT TECH CO LTD
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Existing research on the PSR protocol generally uses a symmetrical power separation transmission mechanism, such as "Three-Step Two-WayDecode and Forward Relay With Energy Harvesting" published by Nguyen Thi Phuoc Van and Syed FarazHasan et al. in IEEE Communication Letters in 2017 In the article, the network interruption performance based on the symmetrical power separation transmission mechanism in the three-stage energy-carrying two-way relay network is studied. Under this mechanism, the power separation ratios at both ends cannot be adjusted according to different channel statistical characteristics, so the signal transmission The total interrupt capacity needs to be improved
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[0032] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0034] The process of completing signal transmission in the present invention is as follows: figure 1 As shown, among them, the asymmetric power split ratio design steps are as follows Figure 4 As shown, the details are as follows:
[0035] Step 1, the signal is transmitted in the A→R→B direction, and the interruption capacity on the link is calculated;
[0036]
[0037] Among them, U is the signal transmission rate; the distance from i to the relay node R, the channel coefficient...
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The invention discloses a design method of the asymmetric power segregation ratio in a two-way relay network with energy. The method is used for improving the interruption performance of the two-way relay network, and is suitable for a three-step two-way relay communication network with energy. When the relay network transmits signals, relay nodes determine the power segregation ratio according toa certain criteria, and then perform energy collection and information decoding adopting the selected power segregation ratio. The relay node R is equipped with an information receiver and an energyreceiver, and a terminal node is equipped with a continuous power supply. According to the design method of the asymmetric power segregation ratio in the two-way relay network with energy, the interruption probability during signal transmission between the nodes of the two terminals can be reduced, so that the maximum value of the total interruption capacity is improved, thereby guaranteeing the communication quality and obtaining a better transmission performance.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for designing an asymmetric power separation ratio in a bidirectional relay network with energy. Background technique [0002] The rapid growth of communication demands in modern society has promoted the development of efficient wireless communication technologies, and relay technology is a typical representative of them. Commonly used relay nodes often work in half-duplex mode, resulting in the inability to send and receive signals at the same time. Two-way information transmission goes through four stages, thereby reducing the utilization rate of network spectrum resources. There are two solutions in the industry. One is to use full-duplex relays instead of half-duplex relays. However, this method causes serious self-interference at the relays. At the same time, the processing capability of the nodes is too high, making it difficult to implement. . The...
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IPC IPC(8): H04W24/02
CPCH04W24/02
Inventor 李勇朝张翔邬永强李兆刚叶迎辉张锐陈东滨陈炎
Owner ZHEJIANG WELLSUN INTELLIGENT TECH CO LTD