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Multi-channel power distribution method driven by sustainable transmission demand in energy collecting wireless network

A technology for energy collection and transmission requirements, applied in wireless communication, power management, electrical components, etc., can solve problems such as being unable to directly apply to multi-channel wireless communication systems, and unable to ensure data cache constraints at the same time

Active Publication Date: 2018-09-28
XI AN JIAOTONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

The present invention is an adaptive channel state power allocation method based on data cache stability and battery supply stability, to solve the problem that existing adaptive power allocation methods cannot guarantee data cache constraints and battery interruption constraints at the same time, or cannot be directly applied to multiple channels Problems with wireless communication systems

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  • Multi-channel power distribution method driven by sustainable transmission demand in energy collecting wireless network
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  • Multi-channel power distribution method driven by sustainable transmission demand in energy collecting wireless network

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Embodiment Construction

[0095] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0096] refer to figure 1 , the multi-channel power allocation method driven by sustainable transmission requirements in the energy harvesting wireless network provided by the present invention, in the energy harvesting wireless communication system, there are N parallel transmission channels between the transmitter and the receiver to transmit N independent data flow. The transmitter is powered by a battery with energy harvesting charging. There is a power controller in the transmitter. Driven by the sustainable transmission demand, according to the real-time remaining battery power information and N-channel parallel transmission channel status information, the transmission power of each channel is dynamically allocated to ensure the buffer overflow probability and battery interruption. The probability is smaller than the target pro...

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Abstract

The invention discloses a multi-channel power distribution method driven by a sustainable transmission demand in an energy collecting wireless network. The method comprises the following steps: 1) setting a data queue index ThetaD and an inversion energy queue index ThetaE according to the sustainable transmission demand, and initializing system parameters; 2) entering a transmission period, acquiring electric quantity information and limiting the total transmission power maximum value Mumax based on state information sequence of N channels; 3) solving the optimal total transmission power Mu*and like; 4) distributing the optimal transmission power as shown in description of each channel, and transmitting formula as shown in description paths of independent data flows to a receiver; 5) updating Lagrangian multiplier Lambda; and 6) entering the next transmission period, and repeating the steps 2) to 5) until the transmission is finished. The multi-channel power distribution method disclosed by the invention is suitable for cache capacity limited equipment in the energy collecting wireless communication system, and the cache capacity limitation of a transmitter and a battery interruption probability limitation under the energy collection are taken into consideration at the same, so that the power self-adaptive distribution scheme of the system capacity is maximized in the premiseof ensuring that the cache overflow probability and the battery interruption probability satisfy the sustainable transmission demand.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a multi-channel power allocation method driven by sustainable transmission requirements in an energy harvesting wireless network. Background technique [0002] Energy harvesting is regarded as a promising enhancement in battery-powered wireless communication networks. Energy-harvesting wireless communication networks are expected to bring several dramatic changes to wireless communication: In addition to energy self-sufficiency and almost permanent device life, the expected benefits include reducing the use of traditional energy sources and corresponding carbon emissions, and getting rid of traditional battery charging The unlimited mobility brought by the future, the ability to deploy unlimited networks to places that are difficult for humans to reach, such as: remote mountainous areas, inside reinforced concrete structures, and inside the human body. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24H04W52/30
CPCH04W52/241H04W52/30
Inventor 杜清河李军刘毓欧奕杰任品毅
Owner XI AN JIAOTONG UNIV
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