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Power shunting method for synchronous wireless information and power transfer of full duplex relay

A synchronous transmission and full-duplex technology, applied in the field of wireless transmission, can solve the problem of low spectrum efficiency and achieve the effect of improving spectrum efficiency and reducing dependence

Inactive Publication Date: 2017-03-08
SHANDONG JIAOTONG UNIV
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  • Description
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Problems solved by technology

[0004] Existing power splitting methods can only be applied to SWIPT in single-hop communication systems and half-duplex relay communication systems, and its spectral efficiency is lower compared with full-duplex relay systems

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  • Power shunting method for synchronous wireless information and power transfer of full duplex relay
  • Power shunting method for synchronous wireless information and power transfer of full duplex relay
  • Power shunting method for synchronous wireless information and power transfer of full duplex relay

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Embodiment Construction

[0082] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0083] Since the PSR protocol has better system performance than the TSR protocol, the present invention conducts research on SWIPT based on power splitting for full-duplex relay networks, and proposes a specific implementation method for full-duplex relay SWIPT based on power splitting. In order to minimize the system outage probability, the present invention respectively designs power splitting methods based on complete channel state information (Channel State Information, CSI) and partial CSI; for these two power splitting methods, the analytical solution of the quartic equation is given When determining the power split ratio, the power split method based on partial CSI does not need the CSI of the second hop link, which greatly reduces the cost of CSI estimation and feedback. Simulation results show that the power splitting method proposed in the present invention...

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Abstract

The invention provides a power shunting method for synchronous wireless information and power transfer of a full duplex relay, wherein the power shunting method belongs to the field of wireless transmission. The power shunting method for synchronous wireless information and power transfer of the full duplex relay is used for a full duplex relay network, and a power-shunted relay transceiver architecture is utilized. The power shunting method comprises the steps of acquiring energy by a full duplex relay node from a received RF signal of a source node, thereby realizing wireless full duplex information relaying; power shunting based on total information state information, namely using state information of a first-hop channel, a second-hop channel and a relay loop channel, determining an optimal power shunting ratio through a principle for maximizing an end-to-end SINR or a principle for minimizing a system interception probability; or power shunting based on partial information state information, namely using the state information of the first-hop channel and the relay loop channel, determining an optimal power shunting ratio through the principle for maximizing the end-to-end SINR or the principle for minimizing the system interception probability.

Description

technical field [0001] The invention belongs to the field of wireless transmission, and in particular relates to a power distribution method for synchronous transmission of full-duplex relay wireless information and energy. Background technique [0002] In wireless application scenarios with limited physical conditions or economic factors, energy harvesting technology has become one of the most important enabling technologies in wireless collaborative communication and wireless sensor networks. By performing EH from radio frequency signals in the surrounding environment, energy-limited relay or sensor nodes can avoid periodic power charging or battery replacement, which has great practical significance for large-scale deployment of wireless sensor networks. Considering the phenomenon that radio frequency signals can carry information and energy at the same time, the literature "Wireless information and power transfer: Architecture design and rate-energy tradeoff," (X.Zhou, R...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L5/14H04L7/00H04W28/02H04W52/24H04W56/00
CPCH04L1/0026H04L5/14H04L7/0008H04W28/0221H04W52/241H04W56/00
Inventor 刘洪武
Owner SHANDONG JIAOTONG UNIV
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