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Multi-antenna system high-energy-efficiency dynamic power allocation method

A multi-antenna system, dynamic power technology, used in power management, wireless communication, electrical components, etc.

Active Publication Date: 2016-02-17
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this "pop-pop" control is suitable for low signal-to-noise ratio (SNR) or diffusion-limited conditions of wideband channels, and assumes high correlation between successive channel realizations

Method used

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  • Multi-antenna system high-energy-efficiency dynamic power allocation method
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  • Multi-antenna system high-energy-efficiency dynamic power allocation method

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] The flowchart of the method of the present invention is as figure 1 shown, including the following steps:

[0032] Step 1: Establish a system model, that is, a channel transmission model.

[0033] Design contains N t A communication link between a transmitting antenna and a receiving antenna, the channel of the link satisfies the Rayleigh flat fading channel environment, assuming the training signal S k The size is J×N t , is used within time block k (k ≥ 4000), where J represents the duration of the training interval, at least satisfying J ≥ N t . and Indicates the elements in the vector of sent training signals. no t =1,...,N T , where n t Indicates the number of transmit antennas.

[0034] The receiver acquires the received signal is a matrix of size J×1.

[0035] y k T ...

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Abstract

The invention relates to a multi-antenna system high-energy-efficiency dynamic power allocation method comprising the steps that a system model is established; Kalman channel estimation and a differential feedback model are established and time correlation is analyzed; and an energy efficiency power allocation mechanism is established based on time correlation. Kalman filtering channel estimation and estimation error are analyzed based on Gaussian Markov channel characteristics in a multiple input multiple output system through consideration. Channel feedback and feedback error in channel differential feedback are further analyzed based on the channel estimation value. Therefore, the lower bound of traversal energy efficiency of the system is given based on channel estimation, channel feedback and time correlation of error thereof, and a dynamic training sequence power and data transmission power allocation method is given with maximizing of the energy efficiency index acting as the objective.

Description

technical field [0001] The invention relates to a dynamic power allocation method based on energy efficiency optimization, and belongs to the related field of resource allocation in wireless communication. technical background [0002] In recent years, wireless communication technology has developed rapidly. With the birth and application of digital communication technology, mobile communication technology has undergone tremendous changes. To meet future demands, wireless communication technology will need to have a higher information transmission rate, so as to provide more effective and reliable communication services to anyone at any time, any place. Therefore, one of the key issues that need to be solved in the wireless communication system is to improve the frequency band utilization to achieve high-speed and reliable data transmission under limited frequency band resources. [0003] Studies in recent years have shown that multiple antenna MIMO (Multiple Input Multiple...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/34
CPCH04W52/346
Inventor 杨睿哲杨旭月郑晨张延华王朱伟司鹏搏孙恩昌孙艳华
Owner BEIJING UNIV OF TECH
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