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Coordinated multi-relay selection and power distribution method based on energy efficiency criteria

An allocation method and energy efficiency technology, applied in the directions of power management, energy consumption reduction, advanced technology, etc., can solve the problems of not considering the link energy efficiency, not considering the energy efficiency of the cooperative communication system, etc., so as to reduce system overhead and reduce system function. consumption and complexity, the effect of a high level of energy efficiency

Inactive Publication Date: 2013-09-11
SHANDONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

This patent has certain advantages, but it does not consider the energy efficiency of the cooperative communication system in the entire communication process. In addition, the relay selection strategy does not consider the link energy efficiency. It is only a simple channel selection from the sender to the relay node. good relay

Method used

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  • Coordinated multi-relay selection and power distribution method based on energy efficiency criteria
  • Coordinated multi-relay selection and power distribution method based on energy efficiency criteria
  • Coordinated multi-relay selection and power distribution method based on energy efficiency criteria

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Embodiment

[0034] Examples of the present invention figure 1 As shown, a cooperative multi-relay selection and power allocation method based on the energy efficiency criterion is realized by the following communication system, which includes a transmitting base station 1 (source node), multiple relay nodes 2 and a destination Node 3, sending base station 1 performs channel estimation first, and compares the energy efficiency of the relay link with the energy efficiency of the direct transmission link when each relay node 2 participates. If the energy efficiency of the relay link is lower than that of the direct transmission link If the energy efficiency of the direct transmission link is higher than the energy efficiency of the direct transmission link, then all energy efficiencies are greater than the energy efficiency of the direct transmission link The efficient relay nodes 2 are put into a set, and the transmitting base station 1 determines the minimum number of nodes participating i...

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Abstract

The invention relates to a coordinated multi-relay selection and power distribution method based on energy efficiency criteria and belongs to the field of wireless communication. A system comprises an information source node, multiple relay nodes and a destination node. On the premise of meeting users' requirement, the coordinated multi-relay selection and power distribution method aims to improve energy utilization efficiency of the system, and selects links with high energy efficiency to transmit by comparing energy efficiency conditions of different transmission links. With relays participated, power distribution of the relay nodes is performed based on an optimal energy efficiency mode. The power distribution method can enable the system to keep high efficiency even if available power increases.

Description

technical field [0001] The invention relates to a cooperative multi-relay selection and power distribution method based on an energy efficiency criterion, and belongs to the field of downlink data transmission of digital cellular networks in wireless communication. Background technique [0002] With the rapid development of my country's communication industry, the energy consumed by the communication industry accounts for an increasing proportion of the total energy consumption of the society. Many standardization organizations and operators have begun to pay attention to the energy efficiency of wireless networks in next-generation communication technologies, and many international cooperation projects have begun to improve the energy efficiency of wireless communication networks and reduce communication operating costs. Version, an American telecom operator, has proposed the Energy Efficiency Access Standard (TEEER) for communication equipment procurement, and stipulates t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W72/04
CPCY02D30/70
Inventor 白智全许银龙王常慧
Owner SHANDONG UNIV
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